An insulated 40-ft3 rigid tank contains air at 50 psia and 120°F. A valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. The air temperature during this process is kept constant by an electric resistance heater placed in the tank. ­ Determine the elec- trical work done during this process.

Q: A 14-ft tank contains oxygen initially at 14.7 psia and 80°F. A paddle wheel within the tank is…

A: Given data as per the question The volume of tank= 14 ft3 =0.396436 m3 Initial pressure =14.7 psia…

Q: A piston-cylinder device whose piston is resting on top of a set of stops initially contains 0.6 kg…

A: Given:The mass of the helium gas is m=0.6 kg.The initial pressure of the helium gas is P1=100…

Q: A piston-cylinder device contains 0.1 m³ of refrigerant 134a at 0.24 MPa and 40°C. Initially the…

A:

Q: A simply supported beam of length L has a concentrated couple Mo of 10 kN-m applied at one end of…

A: GIVEN DATA- A simply supported beam of length L=7m M=10KNm E=200GPa I=60*10^6 mm4 WE HAVE TO FIND…

Q: A spring-loaded piston-cylinder device contains 0.21 kg of water initially at 90°C and with an…

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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: A cylinder fitted with a frictionless piston contains 5 kg of superheated vapor of R-134a  at 1000…

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Q: piston cylinder assembly initially contains 25g of saturated water vapor at 600kpa pressure. Then,…

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Q: A rigid tank contains 2.2 lbm of R-134a, initially at 70 psia and 160F. The fluid is then allowed…

A: Given: The mass of the R-134a in the tank, m = 2.2 lbm The initial pressure of R-134a in the tank,…

Q: An isolated piston-cylinder device contains 5 L of saturated liquid water at a constant pressure of…

A: Given: Work done, W = 400 kJ        Pressure, P = 170 kPa         Volume, V = 5 L          Current,I…

Q: A 0.5m³ rigid tank containing hydrogen at 20°C and 600 kPa is connected by a valve to another 0.5m³…

A: given : VA = 0.5 m3 TA = 20⁰C = 293 K PA = 600 kPa   VB = 0.5 m3 TB = 30 ⁰C = 303 K PB = 150 kPa…

Q: 4. 0.5 kg of steam at 250°C is enclosed behind a piston in a cylin 0.9MPa. with the piston rigidly…

A: Givenm=0.5kgT1=250oCP1=0.9MPaP2=0.7MPa

Q: A piston cylinder device contains 0.850 kg of refrigerant-134a at -10.0°C. The piston that is e and…

A:

Q: A piston-cylinder device contains 0.13 kg of air initially at 2 MPa and 350°C. The air is first…

A: Introduction In this problem, we will calculate the work done by the piston cylinder device or work…

Q: A 12-ft³ tank contains oxygen at 15 psia and 80°F. A paddle wheel within the tank is rotated until…

A: Given data:Volume of tank (V)  =Initial Pressure (P1) =Initial Temperature (T1)=…

Q: A piston-cylinder device initially contains 0.65 m3 of saturated water vapor at 225 kPa. At this…

A: The P-V diagram of the process Given,

Q: A quantity of ideal gas occupies 0.5 m3 at 5oC and 165 kPa. It is compressed in accordance with the…

A: Given   Initial      Pressure, P1 = 165 kPa       Volume, V1 = 0.5 m3 Final      Pressure, P2 = 350…

Q: A 0.6-m3 rigid tank is filled with saturated liquid water at 135°C. A valve at the bottom of the…

A: Given data as per the question The volume of the gas =0.6 m3 Considering the properties table  of…

Q: (1)Refrigerant R-134a that has an initial volume of 1220 L at 320 kPa with a quality of 91 percent…

A: Given:V1=1220 L    =1220*10-3 m3P1=320 KPax1=0.9P2=500 KPaT2=150°C

Q: A quantity of ideal gas occupies 0.5 m3 at 5oC and 165 kPa. It is compressed in accordance with the…

A: To find : The heat transfer during the process. Given data : The Initial volume is V1=0.5 m3. The…

Q: A rigid tank contains 5 kg of saturated liquid water at 30°C. The tank is heated to a final…

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Q: A 0.68 m3 rigid tank contains refrigerant-134a initially at 100 kPa and 40 percent quality. Heat is…

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Q: A piston-cylinder device initially contains 0.4 m³ of air at 100 kPa and 80°C .The air is now…

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Q: An 22 m3 rigid tank initially contains Argon gas at 152 kPa and 28 oC. The tank is connected by a…

A: (a) To find: The final temperature of the tank in Kelvin. Given: The initial volume of the tank is…

Q: Consider a closed piston cylinder that contains 0.2 kg of superheated water vapor at 200C and…

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Q: (a) The initial temperature of the refrigerant (oC), (b) The final volume of the refrigerant ( in…

A:

Q: (1)Refrigerant R-134a that has an initial volume of 860 L at 30°C with a quality of 70 percent is…

A: Given:V=890 L =890*10-3 m3T1=30°Cx1=0.7P2=900 KPaT2=80°C

Q: Consider a sealed, rigid container of 10 kg of water vapor at 25°C and 80 kPa. A paddle wheel with a…

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Q: A piston-cylinder device initially contains steam at 3.5 MPa, and 250°C. Steam loses heat to the…

A: The initial pressure is The initial temperature is The final temperature is

Q: A supply line that carries steam at 5MPa and 500°C is connected to a piston- cylinder device in…

A: Given, a piston- cylinder device with the following data.Initial Volume of steam, Initial pressure…

Q: work done

A: Detailed answer given below.

Q: An insulated piston cylinder assembly initially contains 5 L of saturated liquid water at a constant…

A: The energy balance for this closed system could be defined as the following.

Q: A rigid, well-insulated tank is initially empty. The tank is kept connected by means of a valve to a…

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Q: A 50-L electrical radiator containing heating oil is placed in a 50-m3 room. Both the room and the…

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Q: A piston-cylinder device initially contains steam at 200 kPa, 200°C, and 0.4 m³. At this state, a…

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Q: Air is in a piston-cylinder device initially at 800 psia and 2500°F. The air is now expanded such…

A:

Q: Question 3 An insulated 1.15 m³ rigid tank contains air at 350 kPa and 50°C. A valve connected to…

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Q: Two rigid tanks are connected by a valve. Tank A contains 0.25 m³ of water at 450 kPa and 75 percent…

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Q: Two adiabatic chambers, 2 m3 each, are interconnected by a valve, with one chamber containing oxygen…

A: Given data: The initial volume of oxygen, V1 = 2 m3. The initial pressure of oxygen, P1 = 1000 kPa.…

Q: Air expands in a gas turbine from 590kPa to 102kPa. The expansion obeys the law pv1.27 = C the…

A:

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.