wenty cu. Ft of air at 320 psia and 420°F is cooled to 150°F at constant volume. Cv = 0.1714 and k = 1.4. What are (a) the final pressure (b) the work (c) the change in internal energy (d) the transferred heat (e) the change of enthalpy and (f) the

Q: Water is heated at constant pressure from 5.0 MPa, 140 ºC to 500 ºC. Determine the rate of heat…

A:

Q: A system containing air undergoes a polytropic process (polytropic exponent n= 1.3). During the…

A: Given:Polytropic index, n=1.3P1=100 kPaP2=1000 kPam=0.001 kgT1=10o C

Q: Initially, there is 2 kg of liquid water at 80°C in a teapot. It was observed that the water…

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Q: Air initially at 100 kPa and 300K undergoes a constant pressure until it reaches a final temperature…

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Q: X1 P A well-insulated tank contains a liquid-vapor mixture of water with quality of 0.7 at 250 kPa.…

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Q: A piston-cylinder device initially contains 0.4 m^3 of saturated water vapor at a pressure of 200…

A: vapor pressure = 200kPa loss pf heat = 10kJ PRESSURE RISES TO = 300KPA

Q: A fixed amount of water is enclosed in a cylinder and piston assembly. The mass of the water is 20…

A: Given-  P1 = 2000 kPa…

Q: An insulated piston-cylinder device contains 200 L of air at 292 kPa and 25 °C. A paddle wheel…

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Q: In an experiment, a certain amount of air is heated at constant pressure from 1.7 m3, 39 0C and 97…

A: This is the very basic question of thermodynamics and used concept is entropy change of ideal gas…

Q: is expar a. Then the gas i 350°C ally, the gas und

A: Given data P1= 1250 kPa P2= 130 kPa T1= 350 0C m= 3.8 kg PV1.28= Conctant

Q: Through an isentropic process, a piston compresses 2 kg of an ideal gas at 150 kPa and 35C in a…

A:

Q: 1 kg of saturated liquid water at 85 C (degree Celsius) is being heated until it becomes saturated…

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Q: As shown in the figure, a piston-cylinder assembly with a stopper contains R-410A, a refrigerant at…

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Q: In an experiment, a certain amount of air is heated at constant pressure from 1.7 m³, 29 °C and 97…

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Q: 3. A 2 kg mass of oxygen expands at a constant pressure of 172 kPa in piston-cylinder system from a…

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Q: A tank, having a volume of 5 m3, is filled with N2 and 2 kg of CO2 at a pressure and temperature of…

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Q: . Initially, 0.55 kg of air is contained in a piston-cylinder device at 2 MPa and 350°C. The air is…

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Q: In an experiment, a certain amount of air is heated at constant pressure from 1.7 m3, 27 0C and 97…

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Q: A 0.8 m' rigid tank contains refrigerant-134a initially at 1.80 bar and 30 percent quality. Heat is…

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Q: piston-cylinder containing steam at 700 kPa and 250o C undergoes a constant pressure process until…

A: Given data :-  Pressure = 700kpa Temperature = 250 ° C

Q: A piston-cylinder assembly initially contains 473 grams of refrigerant 134a at 400 kPa and 50°C. The…

A: Given:- Refrigerant R134a Initial Condition :  Mass(m) = 473 grams = 0.473 kg Pressure (P1) = 400…

Q: Seven kilograms of air is contained in a constant volume tank at 327 degrees C and 120 kPa, then is…

A: Calculate the entropy change of the air.

Q: At P = 1.8 and h = 3040 Kj/kg. Determine the Temperature, Internal Energy, Volume with the use of…

A: Given:P=1.8 MPah=3040 KJ/Kg

Q: If one kg of air initially at a temperature of 165°C and pressure of 7 bar is heated at constant…

A:

Q: A small rigid storage tank with a volume of 0.12 m3 contains 0.9 kg of argon at 40°C. Heat transfer…

A: STEP 1: The volume of the tank is V = 0.12 m3. The mass of the argon is m = 0.9 kg. The initial…

Q: Determine the internal energy in kJ/kg of saturated steam at 7 MPa and 285.88°C and quality of 0.81.

A: Given DAta  Saturation Pressure, Psat=7MPa Saturation temperature, Tsat=285.88C Quality, x=0.81

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Q: A 0.15 kg of air contained in a piston-cylinder device where the initial pressure was 2000 kPa and…

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Q: problem 1. A piston-cylinder device initially contains water vapor at 200 kPa, 250°C, and 0.4 m². In…

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Q: Water is heated in a piston/cylinder arrangement at constant pressure. Initially the water is…

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Q: piston-cylinder

A: OPTION b) 8.712 Btu/R

Q: An insulated, vertical piston–cylinder device is purchased from a manufacturer. Upon purchase, it…

A: From the steam table, the specific enthalpy of the saturated water at 200C is 83.9199 kJ/kg. From…

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.