2 kg of steam at 100 bar and 375°C expands reversibly in a perfectly thermally insulated cylinder behind a piston until pressure is 38 bar and the steam is then saturated. Use the steam tables to evaluate enthalpy, internal energy and volume of steam at (i) Start point (ii) End point (iii) What kind of process has taken place? Explain.

Q: A piston cylinder system contains 3 moles of oxygen gas at 300K. The gas is compressed reversibly…

A: T1=300 Kno. of mole, n=3V1=0.06 m3V2=0.01 m3W=850 J

Q: adiabatic index, final pressure and work input.

A: Solution:-:         Given:-CO2-M=44kg/K mol                                   P1=3.7 bar…

Q: 1 kg of air at 1 bar, 15°C is compressed reversibly and adiabatically to a pressure of 4 bar. The…

A:

Q: 6) A mole of monatomic gas initially at 0.83 atm and in thermal contact with the surroundings at 294…

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Q: Air at 20°C and 7 bar is contained in a rigid tank of 0.57 m3 volume capacity. The tank is provided…

A: Given data as per question P1=7 barT1=200CV1=0.57 m3

Q: Can you show the step-by-step solution how to get the answers for this problem? There are 2.27…

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Q: A polytropic process of air from 150 psia, 300°F, and 1 ft³ occurs to p2 = 20 psia in accordance…

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Q: 2 moles of an ideal gas with a fixed volume of molar heat capacity of 12.54 J / mol K are rapidly…

A: Heat supplied is the heat supplied for the power generation or for the useful work of a machine.…

Q: (a) i) Consider an ideal gas at a given state that expands to a fixed final volume. In the first…

A:

Q: Is it possible for anisobanc process to be isochoric at the same time? Why or why not? Explain. 2.…

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Q: What is the volume and enthalphy of 2kg of steam at 100 kPa and 200°C? O a. 2.1724m3 and 2875.5 k)…

A: The correct option is d, 5751kj

Q: Carbon dioxide (molar mass 44 kg/kmol) expands reversibly in a perfectly thermally insulated…

A: Given:-   carbon  dioxide            →Assume  carbon  dioxide  to  be a perfect gas.…

Q: closed rigid tank with a volume of 78 litres contains steam at 5 bar and dryness fraction of 0.79.…

A:

Q: Example 1 10 kg of gaseous CO, contained in a closed system undergoes a reversible at a constant…

A:

Q: An insulated piston-cylinder device contains 0.2 m³ of saturated refrigerant R-134a vapor at 1 MPa…

A: The piston cylinder is insulated.The volume of saturated refrigerant vapor is .The initial pressure…

Q: A cylinder that contains 0,067kg of carbon dioxide (with molar mass 44kg/mol),occupying a volume of…

A: Given that , Mass of carbon dioxide m=0.067kgMolar massof carbon dioxideM=44kg/molInitial volume…

Q: Cp(T):=24.108+2.091 •10¬1.T+2.166•10¬ª.T² – 3.372 • 10-7.T³ (J/mol K)

A: here dh = CpdT, so for h2-h1 take integration of CpdT term from T=350K to T= 450K.for solution refer…

Q: Saturated R134a vapor enters the compressor of a heat pump at -12°C and exits at 40°C and 8 bar.…

A:

Q: Two identical piston-cylinder devices are each filled with 1 kg air at T = 300 K and P = 2 bar.…

A:

Q: sothermally and reversibly to a pressure of 10 bar. Calculate the heat supplied and the work done…

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Q: (25 p) Steam at 30 bar and 320°C enters to a mixing chamber with a rate of 50000 kg/h and mixed with…

A: Condition for steam P1=30 bar T1=320°C m1˙=50000 kgh or ms˙=13.88 kgsecCondition for water P2=25 bar…

Q: Using the Redlich–Kwong equations of state develop a compression factor and molar volume chart for…

A: Redlich-Kwong equations of state relates the pressure, temperature and volume of gases which is an…

Q: Oxygen gas is compressed in a piston-cylinder device from an initial state of 0.8 m^3/kg and 45 C to…

A:

Q: Carbon dioxide (molar mass 44 kg/kmol) expands reversibly in a perfectly thermally insulated…

A: Any thermodynamic process can be shown by the following equation: PVn=C As n varies the process…

Q: Steam at 30 bar and 320°C enters to a mixing chamber with a rate of 50000 kg/h and mixed with water…

A: Given data, m˙1= Mass flow rate of the steam which is entering to the chamber at 30 bar = 50000 Kg/h…

Q: Steam at a pressure of 21 bar and a dryness fraction of 0.9 occupies a volume of 0.427 m' in a…

A: Given data Writing the properties of steam from steam table

Q: Calculate the change of q, w, U, H in each process and in a total sequence of all four processes.…

A: The P-V diagram of the processes are: -

Q: An ideal monatomic gas made up of N atoms is held in a container with a movable piston. In a…

A: (a) The gas is expanding from volume Vi to Vf at constant temperature.   The internal energy change…

Q: The heating of an ideal gas is a thermodynamic transformation: O (a) Always reversible O (b) Always…

A: Given data To select the correct option.

Q: A mechanical engineer has approached your boss with a design for a new device. The device is fed…

A:

Q: Heat added in the process ?

A: Given; For 1.5 kg of water in saturated state;Pressure=2 Barvf=0.001061 m3/kguf=504.0 kJ/kghf=505…

Q: Answer B)

A: Given Data: The initial volume of ethane in the first case is, V1=0.06 m3. The initial pressure of…

Q: 2. Using the steam tables, determine the specific enthalpy, specific volume and specific enthalpy…

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Q: QUESTION 1 What is the enthalpy of Refrigerant 134a at 8°C and 460 kPa, in kJ/kg?

A:

Q: In a heat-treating process, a 10-kg metal part, initially at 1100 K, is quenched in a closed tank…

A: According to the given data mw=100kg mm=10kg The initial temperature of metal = T1m = 1100K and The…

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.