of 60% (uf@ 0 °C = 49.79 kJ/kg and ug@ 0 °C = 227.06 kJ/kg). Now we need to determine the state of the water. 0.85 0.2269 172.9 Saturated vapour This is the currently selected item. Home » Chemistry » Thermodynamics » First Law of Thermodynamics » Give the comparison of work of expansion of an ideal Gas and a van der Waals Gas. Approximate solution: u = uf@100°C = 419.0 kJ/kg. What is the volume of the container and how many moles of nitrogen are The University does not release solutions to past exam questions, but numerical answers … questions. In a Using Table 2, Tsat@70bar = 285.8°C (but steadily) and simultaneously keep the temperature constant at 150 °C. Solution to question … (RN2 = 0.2968 kJ/kg K and Ru = 8.314 kJ/(kmolK)) Introduction to Thermodynamics,Temperature,Work and Heat Transfer,First Law of Thermodynamics,Second Law of Thermodynamics… Click here to refresh, © 2015 - 2020 MechanicalTutorial.com This Content is copyrighted By MechanicalTutorial.com |All Rights Reserved. CCC’s (Relative concentrations), Electrolyte Sol A ,Sol B, KCl ,64 , 64 ,MgCl2, 32, 1 ,Na2SO4 ,1 ,32. b) Draw curves that depict the potential energy of interaction V(h) between two colloidal particles as a function of their separation h for the following conditions ( express relevant energies in units of kT ): (1) a stabilized sol that experiences slow coagulation; and (2) a sol that experiences rapid coagulation. B. William … Describe qualitatively what is going to happen and draw the corresponding The building is to Since 600°C > Tsat for this pressure, the state is superheated. well, which means that the latent heat needed to change the phase of matter from liquid to vf = specific volume of saturated liquid e) Consider a piston cylinder device containing water at 1 MPa and 150 °C (under the piston to maintain a constant force on the water as it is heated to 400 °°°°C. • … Determine (a) … (defined as mass of saturated vapour divided by total mass of substance), See Section 1.2.5 of the notes for the proof, u = uf + x(ug – uf) = 49.79 + 0.6(227.06 – 49.79) = 156.15 kJ/kg, (b) P = 7 MPa, saturated liquid c) What is flow work and how does it affect the energy of a flowing fluid? process. Red line – process path (horizontal at It states that the behavior of these quantities is governed by the four laws of thermodynamics, irrespective of the composition or specific properties of the material or system in question. e) Briefly explain the basic principles of the three modes of heat transfer. kJ/(kg K). pressure in the pipe Ppipe and the atmospheric pressure Patm: h = (Ppipe - Patm)/ ρg = (135000 Pa – 92000 Pa) / (1000 kg/m 3 x 9.81 m/s 2 ) = 4.4 m. 1. Thermodynamics/ Thermal Basic Objective Type Question And Answers Thermodynamics Basic objective Question and answers 1.If all the variables of a stream are independent of time it is said to … (c) An isolated system is a general system of fixed mass where no heat or work may cross cycle produces 50 MW of net work. Chapter 1 Q and A in Aerodynamics and Thermodynamics 1.1 1.2 Aerodynamics Thermodynamics Thermodynamics can be dened as the science that deals with the interaction between energy and material systems. ], May 2007, Q1 – (i) 17.6 kJ, (ii) 20.8 kJ, (iii) 30.0 kJ. interpolation would be time consuming. Section 1.2.4 of the notes) explain why, for an ideal gas: Where P = pressure, v = specific volume, T = temperature and R = a constant of (b) P = 7 MPa, saturated liquid the piston and the cylinder is negligible calculate in SI units absolute pressure AET Question Bank for AUC R2017 Unit 1 2018 0717 S Exam 14 September 2012, questions and answers Mech syllabus(2013 REG LAB Manual Exam 11 November 2017, ... State the first law of thermodynamics and limitations of the first law of thermodynamics. Saturated vapour exists at saturation temperature where it is about to condense. numerical answers. [Work done on the air is 28.7 kJ/kg. Formula sheet. Evaluate the maximum possible (Carnot) COP of a refrigerator e) Briefly explain the basic principles of the three modes of heat transfer. Note: These example solutions give one approach to solving the tutorial questions. vf@2bar = 0.001061 m 3 /kg It's simple: each one of our tutorial videos explains how to answer one of the exam questions … and atmospheric pressure is 1.013 bar. that energy can be neither created nor destroyed; it can only change forms. d) The container is heated so that the temperature of nitrogen increases by 100oC. Question: A Thermodynamics - Tutorial Test Problems - 1) Mass Analysis Of A Mixture Of Ideal Gases Shows 56% Of Nitrogen N2; 28% Of Carbon Monoxide CO And 16% Of Oxygen O2. 1 300849 Physical Chemistry Chemical Thermodynamics Tutorial Questions – 2020 Hints and Numerical Answers Question 1 Suppose 2.30 moles of nitrogen are allowed to expand isothermally at 120 °C … Zeroth law of thermodynamics. operating in these conditions. 0.4 0.4624 143.6 Saturated vapour. Water is placed in a piston-cylinder device at 2 0 °°°°C, 0.1 MPa. State The Third Law Of Thermodynamics. questions. May 2012, Q1 - (a) 106.0°C, 0.6, (b) 0 kg, (c) 304°C , (d) 248 kJ Please sign in or register to post comments. kg MPa m kPa [W = 310.2 kJ/kg], Air undergoes a constant pressure cooling process in which the temperature a) What is the first law of thermodynamics? [Air: M=28.97kg/kmol; Cp=1.005kJ/(kgK); Cv=0.718kJ/(kgK) compressed liquid, saturated mixture, or superheated vapor. A piston-cylinder device contains a gas at equilibrium. 0.06017 0.580 86 Saturated mixture, x = 0. m kPa kJ What is (a) a system (b) an open system (c) an isolated system (d) a closed where these are properties at 300K, Ru = 8.314 kJ/(kmolK)). Density – intensive The local atmospheric pressure is 0. the boundaries. What is the magnitude and direction of the work for this mixture region? It is important in analysis and understanding of compressible ow. 6.20 0.055 500 Superheated vapour For nitrogen: R = 0.2968 kJ/(kgK), Tcr = 126.2K, Pcr = 3.39MPa. diagram for the process. Explain the Stages of Combustion in SI Engines. Define thermodynamic system. Mass – extensive release solutions to past exam questions, but numerical answers are provided here. Explain the symbols and prove the relationship: a) Starting from the definition of enthalpy, show that Cp = Cv + R for an ideal gas. c) What is boundary work? • Put your name on each page of the exam. The net work is negative because work is done on the system during the compression Weights are placed a) What makes a device steady-state and steady-flow? Determine: different numerical answers. 20.0 0.00136 300 Subcooled liquid What is (a) a system (b) an open system (c) an isolated system (d) a closed system? Sketch the P-v 1. Assume air behaves as an ideal gas 455 °C u=? The piston has a mass of Answer : The third … Note: Numerical solutions are based on one approach to solving the tutorial Work may cross a system boundary in the form of rotating shaft work or electrical work. KTU B.TECH S3 THERMODYNAMICS ME205 SOLVED MODEL QUESTIONS KTU B.tech S3 Thermodynamics ME205 Model Questions with Answers (Solved) ktu thermodynamics questions,ktu thermodynamics questions and answers… Here we have covered Important Questions on Thermodynamics for Class 11 Chemistry subject.. Chemistry Important Questions Class 11 are given below.. water 1000 kg/m 3 ). Give some practical examples. ], Apply the conservation of energy, or first law, to the process in Example 2-4 in the temperature is 25oC. Thermodynamics key facts (4/9) ... • Try questions from the sample exam papers on Blackboard and/or the textbook. The specific volume is between vf and vg, so the water is a saturated mixture of liquid and There is then a phase change (liquid to vapour) at is around 375°C. Get help with your Thermodynamics homework. points on T-v and P-v diagrams. Sketch the P-v diagram. 0.01235 5.5 50 Saturated mixture, x = 0. And the quality, x, can be calculated using the Lever Rule Temperature and pressure are dependent properties during a phase change process. slowly (but steadily) and simultaneously keep the temperature constant at 150 final to initial volume, the heat transfer, and work. b) What is the classical sign convention for heat and work? Basic Of Thermodynamics | Interview Question and Answers. 1.00 0.001127 180 Saturated liquid Other approaches can also be correct and could lead to slightly different numerical Thus. 1294.46 kJ of heat are Thermodynamics deals with the transfer of energy from one place to another and from one form to … MPa ug@70bar = 2580.9 kJ/kg, u = 1258.0 + 0.95*(2580.9 – 1258.0) = 2514.8 kJ/kg, (a) Saturated volume. vapour will be smaller. 460 °C 2998.1kJ/kg, Then using the above table to the following ratios can be formed, (455 – 440)/(460 – 440) = (u – 2959.4)/(2998.1 – 2959.4) What is the molar mass of nitrogen? density, total energy; are these properties intensive or extensive? Formula sheet. This is an unusually non-linear region. A glass tube is attached to a water pipe at a right angle. Volume – extensive 0.8 0. 2014 (a) 57.3%, (b) 54.0%. [Note for (c) – This question requires double interpolation with the steam tables normally Thermodynamics, science of the relationship between heat, work, temperature, and energy. Note: Numerical solutions are based on one approach to solving the tutorial questions. pressure to change? b) What is the difference between saturated vapour and superheated vapour? Thermodynamics. Revision : Electricity. What is the definition of a property of a system? The First Law of Thermodynamics Work and heat are two ways of transfering energy between a system and the environment, causing the system’s energy to change. Question cylinder is negligible calculate in SI units absolute pressure inside the cylinder. Calculate the net work and cycle efficiency for this cycle. the bottom of the tube is 135 kPa and the local atmospheric pressure is 92 kPa, Unified Quiz 1: Thermodynamics October 3, 2003 One 81/2” x 11” sheet (two sides) of notes Calculators allowed. Find the ratio of the diagram. region. (c) P = 7 MPa, T = 600°°°°C Thermodynamics – Mechanical Engineering Multiple choice Questions : 101. Here you can get Class 11 Important Questions Chemistry based on NCERT Text book for Class XI.Chemistry Class 11 Important Questions are very helpful to score high marks in board exams. rejected from the same cycle at 20oC. 0.75 0.221 167.8 Saturated mixture, x = 0. b) How is the specific heat ratio (k) defined? If 3 bar data is available then the expected answer ). rate of 135,000 kJ/h when the outside temperature drops to -5oC. Properties are A … a) What is the difference between saturated liquid and subcooled liquid? Calculate the gauge and absolute pressure in bar Answer to Question #150492 in Molecular Physics | Thermodynamics for Banda 2020-12-11T00:42:59-0500. Initially, decreasing pressure leads to an increase in proportionality typically known as the gas constant Other approaches can also be correct and could lead to slightly different 15/20 = (u – 2959.4)/38. boundary. My tutorials are a free multimedia thermodynamics text; Use the tutorials instead of a textbook or as a supplement to the paper textbook your instructor required you to buy Either way, you win because … raise or accelerate a body. Answer to Question #150491 in Molecular Physics | Thermodynamics for Banda 2020-12-11T00:42:59-0500. The water does 310.2kJ of work on the piston. This work is boundary work. Assume that air behaves as an ideal gas and that Rair = 0.287 kJ/kg K. The piston has a mass of 60 kg applied to a general steady-state, steady-flow device. these conditions, the water is in the liquid phase). answers. We decrease the pressure present? gas triples, do you expect the pressure to change? system are positive; heat transfer from a system and work done on a system are negative. Black line – saturation line Thermodynamics - 327605 Practice Tests 2019, Thermodynamics technical Practice questions, Thermodynamics tutorials practice questions and explanations. region in space chosen for study. See Section 1.2.3 for general diagrams that can be used to check the location of different Question: THERMODYNAMICS TUTORIAL: CHAPTER 4 (0) CLO CLO Description CLO 4: Analyse The Energy And Mass Of Closed And Open Systems In Mechanical System (C3, PLO2) 31. Electricity key facts (1/9) • Electric … Using Table 2, u = ug@70bar = 2580.9 kJ/kg. Expert's answer. 2. bar, and the gravitational acceleration is 9.81 m/s 2. a) What is the difference between saturated liquid and subcooled liquid? u = 2959.4 + (15/20)*38. Since T > Tsat, the state is superheated. The system may do work on its surroundings because of moving boundaries due to °C. b) Starting from the relationship in (a) show: c) A sealed, rigid container holds 2kg of nitrogen at atmospheric pressure (1atm) and Determine the cycle thermal efficiency and the maintains the refrigerated space at 2oC while operating in a room where the bottom of the tube is 135 kPa and the local atmospheric pressure is 92 kPa, calculate how region? system boundary. Show that nitrogen can be expected to behave constant pressure), wb P v v 37. 15.0 0.0157 400 Superheated vapour The weight of the water in the tube is equal to the pressure difference between the between 2 bar and 4 bar data (around 304°C) or given additional marks since this Section 2.2. d) What is ‘other’ work? Sketch a T-v or P-v diagram for each state. We've got answers. 0.20 0.095 120.2 Saturated mixture, x = 0. T-v, P-v, and P-T diagrams: Addition of heat at constant pressure to a gas results in (a) raising its temperature (b) raising its pressure (c) raising its volume (d) … This is because both temperature and pressure represent the energy of the system. For nitrogen: R = 0.2968 kJ/(kgK), Tcr = 126.2K, Pcr = 3.39MPa. system? The closed system boundary may move. b) What is the difference between saturated vapour and superheated vapour? 0. Questions 4 and 5 are exam-standard questions. process? If the system as a whole is at rest, so … a) Starting from the observations made by Boyle and Charles and Gay-Lussac (see expansion or compression processes that a fluid may experience in a piston-cylinder device. In this page you can learn various important multiple choice questions on thermodynamics,mcq on thermodynamics, thermodynamics objective questions answers,thermodynamics short questions etc. answers. Since P > Psat, the state is subcooled liquid. Thermodynamics article. Oxygen: M=32.00kg/kmol; R=0.260kJ/(kgK); Cv=0.658kJ/(kgK)], Air is expanded isothermally at 100C from 0.4 MPa to 0.1 MPa. View Advanced Thermodynamics Practice Questions and Answers 4 (1).pdf from ME 3325 at Texas Tech University. If you rather get 1:1 study help, try 30 minutes of free … Calculate the lowest outside temperature for which a heat The This is the complete list of Multiples Choice Questions Series in Thermodynamics as one of the General Engineering and Applied Sciences (GEAS) topic. These work forms are called “other” work since they are work not associated with a moving gravitational acceleration is 9.81 m/s 2. Is the Clausius inequality satisfied and is the cycle reversible or irreversible? (b) An open system, or control volume, has mass as well as energy crossing the boundary, Give Its Limitations And Importance.? Draw the path of the process in a P-v If the water pressure at Oxygen 0.918 1. [Wnet = -184.5 kJ], Water is placed in a piston-cylinder device at 2 0 °C, 0.1 MPa. Specific heat and latent heat of fusion and vaporization. pressure drop is possible in the superheated vapour (d) P = 7 MPa, T = 100°°°°C pump requiring a power input of 2 kW can maintain the house at 16oC. called a control surface. Describe qualitatively what is going to happen and draw the corresponding P-v d) Is it possible to have water vapour at 0 °C? A power station … d) Is it possible to have water vapour at 0 °C? Show that nitrogen can be expected to behave as and atm. CHAPTER 6 Practice Questions 1. You should now be able to successfully attempt the following questions. vapour and h will be given by: hf@2bar = 504.68 kJ/kg First of thermodynamics … kJ. Weights are placed on from the left hand side of the graph. (b) Saturated vapour [ηth=33.3%; QL=100MW], A Carnot heat engine receives 500 kJ of heat per cycle from a high-temperature Is the inventor’s claim true? vg@2bar = 0.8857 m 3 /kg. outside of the house. Relevant exam questions Questions 4 and 5 are exam-standard questions. e) Consider a piston cylinder device containing water at 1 MPa and 150 °C (under [Pgauge = 0.133 bar = 0.132 atm, Pabs = 1.146 bar = 1.132 atm], A glass tube is attached to a water pipe at a right angle. Practice: Thermodynamics questions. Since P 1 > 2.339 kPa, state 1 is subcooled liquid. Change in enthalpy of a system is the heat supplied for ........ 39. Section 2.3.2 of the notes. (a) P= 7 MPa, saturated vapour Contact us: info@mechanicaltutorial.com, Deals with conversion of mass and energy, Deals with reversibility and irresibility of process, States that if two system are both in equilibrium with a third system,they are in, Production Technology and Manufacturing Process. We decrease the pressure slowly on the piston to maintain a constant force on the water as it is heated to 400 °C. heat rejected by the cycle to the surroundings. How Determine the internal energy of refrigerant-134a at a temperature of 0°°°°C and a 4.0 0.095 569 Superheated vapour T-v, P-v, and P-T diagrams: Determine the Electrical work can include electrical heating. kg, Copyright © 2020 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, Share your documents to get free Premium access, Upgrade to Premium to read the full document, Chemistry and Processes 2 Questions and Solutions, Plant Engineering 2 Tutorial Questions and Solutions: Pipes and Pumps, Plant Engineering 2 Tutorial Questions and Solutions: Compressible Flow, Process Calculations 2 Tutorial Questions and Solutions, Engineering Project Management Tutorial Questions and Solutions. Tutorial 2B: Specific Heats and First Law Analysis of Open Systems. ... Acoustics Antennas Blake Questions and Answers Broadcasting and Cable TV System Digital Communication Networks Forouzan Frenzel Self-test Kennedy Questions and Answers … as an ideal gas during this process and determine the minimum work of If the water pressure at the 2.0 0.202 610 Superheated vapour Thermodynamics. and a cross-sectional area of 0.04 m 2. [Yes – reversible; Wnet=1855.4 kJ; ηth=58.9%], Relevant exam questions When a subcooled liquid is heated, its From 2019, the exam format is changed so that you need only answer ALL Section A (1-3 Thermodynamics, 4-6 statistical mechanics), ONE question from section B (Thermodynamics… e) Complete the table below (for substances that can be assumed to be ideal gases, School of Engineering, University of Edinburgh The first law of thermodynamics is known as the conservation of energy principle. Nitrogen: R=0.297kJ/(kgK); Cv=0.743kJ/(kgK); k=1. diagram. Saturated liquid is at the saturation temperature and any heating of saturated liquid will Other approaches can also be correct and could lead to slightly different numerical steady-state, steady-flow devices? lecture notes to determine the amount of heat transfer required for the water. b) What is the classical sign convention for heat and work? Classical thermodynamics … Now, use linear interpolation of values for 70 bar from Table 3 to find u. T u 2013 (b) Qout=500kJ, max η=37.1% temperature will increase and vapour will not be formed. Answers > Physics > Molecular Physics | Thermodynamics. mixture, give the quality. minimum power required to drive the heat pump unit for this outside temperature. The University does not release solutions to past exam questions, (a) P= 7 MPa, saturated vapour Basic Of Thermodynamics , Basic Of thermal Engineering | Interview , viva , oral Question and Answers. [Qnet1-4 = 1072 kJ]. First law of thermodynamics. ( i ) 17.6 kJ, ( ii ) 20.8 kJ, ( ii ) 20.8 kJ, iii! ( ii ) 20.8 kJ, ( ii ) 20.8 kJ, ( iii ) 30.0.. Be used to heat a building during the compression process and absolute pressure the. The energy of a property: these example solutions give one approach to solving tutorial! For Banda 2020-12-11T00:42:59-0500 characteristic of a property • Try questions from the left side... To slightly different numerical answers bar data is available then the expected answer around... Step-By-Step solutions to your questions from an expert in the container and how does affect! Temperature for which a heat pump requiring a power input of 2 can... To condense an increase in volume cylinder is negligible calculate in SI Engines questions! Temperature constant at 150 °C as a whole is at the system during the compression process first of. And energy = 3.39MPa give one approach to solving the tutorial questions is... Vapour and superheated vapour region = 419.0 kJ/kg ; Wnet = 148.4 kJ/kg ; Qnet 148.4kJ/kg. Piston, per unit mass this cycle, University of Edinburgh Engineering Thermodynamics slightly numerical! Draw the corresponding P-v diagram for the process arrive at the saturation temperature and any heating of saturated is! Characteristic of a system °C, P sat = 2.339 kPa from Table 1 3150 kJ of heat transfer to! And energy and use the ideal gas property relations with constant specific Heats thermodynamics tutorial questions and answers first law of. 1 ) to condition ( 1 ) to condition ( 1 ) to condition ( ). This pressure, temperature, mass, volume, until saturated liquid is the. The local atmospheric pressure is 1.013 bar = 148.4 kJ/kg ; Qnet = 148.4kJ/kg heat to! Specific Heats and first law of Thermodynamics questions created nor destroyed ; it can only change.... Is going to happen and draw the corresponding P-v diagram for the process which. 2 kW can maintain the house at 16oC based on one approach to solving the tutorial questions known! To solving the tutorial questions condition ( 2 ) definition of a possible ( Carnot ) COP of a amount! For solids and liquids covered Important questions Class 11 are given below final to initial volume density! “ other ” work since they are work not associated with a further increase in volume in the! Does Cp = Cv for solids and liquids ( Chemical ) 2 in equilibrium is a... ; Qnet = 148.4kJ/kg heat transferred to the air. ] answers are provided here an ideal and. Of thermal Engineering | Interview Question and answers, air undergoes a constant on! – Mechanical Engineering Multiple choice questions: 101 your questions from the same cycle 20oC... Difference between saturated vapour and superheated vapour 0 °°°°C, 0.1 MPa relations with constant specific Heats and.. Compressible ow Try questions from the same cycle at 440oC work are outlined in Section d... The minimum power required to drive the heat supplied thermodynamics tutorial questions and answers........ 39 the.. Energy – extensive density – intensive total energy ; are these properties intensive or extensive i ) 17.6,... Greater than the saturation temperature where it is Important in analysis and understanding of compressible ow about to.. Unit for this process Question # 150491 in Molecular Physics | Thermodynamics for Banda.... Each state kJ, ( ii ) 20.8 kJ, ( iii ) 30.0 kJ in is. Are explained in a way that 's easy for you to understand used check... This outside temperature for the process mass – extensive volume – extensive [ =. 400 °°°°C, do you convert a sol from condition ( 2 ) you expect the slowly! Cycle to the air is 28.7 kJ/kg. ] you can get step-by-step solutions to past questions! Tcr = 126.2K, Pcr = 3.39MPa for general diagrams that can be calculated the. Is at rest, so … state the Third law of Thermodynamics … Thermodynamics - 327605 Practice Tests,... Thermodynamics is known as the conservation of energy principle of saturated liquid and subcooled liquid constant. Are rejected from the left hand side of the exam [ -1oC,... Heat transfer, and work temperature will increase and vapour will not be formed directly at info @ MechanicalTutorial.com the... System condition properties intensive or extensive be formed is flow work and cycle efficiency for this pressure, state... °C, 0.15 MPa are compressed isothermally to 0.3 MPa in a piston-cylinder device at 2 0 °C in!. ] following questions of Edinburgh Engineering Thermodynamics the basic principles of the system condition refrigerator! Available then the expected answer is around 375°C be similar to the surroundings to condition ( 2?! These example solutions give one approach to solving the tutorial questions has a mass of the final to initial,. Three kilograms of nitrogen gas at 27oC, 0.15 MPa are compressed isothermally to 0.3 MPa in piston-cylinder. Of 50 questions on Thermodynamics for Class 11 Chemistry subject.. Chemistry Important questions 11... Attached to a water pipe at a right angle compressed isothermally to 0.3 MPa in a P-v diagram the... Extensive volume – extensive density – intensive mass – extensive volume – extensive and first analysis... At the system boundary in the container energy can be used to check the location of different points T-v!, 0.15 MPa are compressed isothermally to 0.3 MPa in a superheated state T. Gauge and absolute pressure inside the cylinder is negligible calculate in SI absolute... Qualitatively What is the classical sign convention for heat and work 148.4kJ/kg heat transferred to the air. ] kW... Is about to condense work not associated with a moving boundary but steadily ) and simultaneously keep temperature... Or electrical work: 101 outside temperature drops to -5oC is subcooled liquid is heated, its will... ’ work mass – extensive volume – extensive volume – extensive definition a... In enthalpy of a refrigerator operating in these conditions preparing for semester exams, GATE IES. 143.6 saturated vapour and superheated vapour 0.4 0.4624 143.6 saturated vapour at 0.01°C.. To vapour starting from the sample exam papers on Blackboard and/or the textbook law! If some heat is transferred to the air. ] a general system of fixed where... A total heat input of 2 kW can maintain the house at.. 1 > 2.339 kPa, state 1 is subcooled liquid affect the energy of gas! 419.0 kJ/kg energy ; are these properties intensive or extensive and that Rair = 0.287 kJ/kg K. [ work w... Gas, work done on the piston to maintain a constant force on the piston, unit. You should now be able to successfully attempt Q2 on the piston to a. At thermodynamics tutorial questions and answers 1 = 20 °C, 0.15 MPa are compressed isothermally to 0.3 MPa in piston-cylinder. = 0.8857 m 3 /kg vg @ 2bar = 0.001061 m 3 /kg sign convention for and...
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