QI: In a steam power plant, steam enters at 8 MPa and 600 C, the condenser pressure is 8 kPa, and the net power out of the plant is 100MW. Determine 1- The enthalpy at point 1

Q: Refrigerant 134a enters a compressor as saturated vapor at -10 degrees C and leaves it at 280kPa and…

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Q: Problem 4 - Change in entropy system and surroundings The coils of the evaporator of a refrigeration…

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Q: Steam is expanded in the high pressure turbine from 4000kPa, 360°℃ to 1000kPa with an isentropic…

A: “Since you have posted a question with multiple sub-parts, we will provide the solution only to the…

Q: An ammonia refrigeration compressor takes its suction from the evaporator at a temperature of -20oF…

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Q: A car wash service uses 150 litre of pressurized (3 bar) warm water (45oC) to wash each car. It…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: Air enters an air compressor at 100 kPa and 100°C and a flow rate of 5 kg/s. If the air exits at 389…

A: solution p1= 100 kPa      T1= 100 C     P2= 389 kPa      T2= 398 C

Q: The vapour compression cycle below (Figure Q4) utilises the refrigerant R134a flowing at 0.05 kg s¹.…

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Q: Two tanks are connected by a valve. Tank 1 has a volume of 40 ft^3 and contains propane at 15 psia…

A: Given:The volume of gas in tank 1, The pressure in tank 1, The value of The volume of gas in tank 2,…

Q: So the initial pressure is 0.8Mpa?

A: Initial condition of refrigerant R134a, V1=0.05 m3, T1=32oCFinal pressure of R134a, P2=0.4 MPa

Q: Consider the system shown in the figure. When the pins fall away, the gas expands against a constant…

A: Number of moles of the gas, n=10  Initial pressure Pi= 5atm External Pressure Pext = 1 atm T = 300 K…

Q: a line at 0,7 MPa and 40 IS attached tO a tank that Contains little water (assume zero initial…

A: Solution is given below:

Q: a turbine at 1100 kpa , dry and saturated . The steam is exhausted from the turbine at 200 kpa and…

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Q: A turbine is fed with a flow of 20 kg/s of water vapour at 4MPA. The steam is generated in a boiler…

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Q: A schematic of a steam power plant is shown in the figure. The boiler volume is 50 liter and…

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Q: Refrigerant-134a enters an adiabatic compressor at -26°C as a saturated vapor at a rate of 0.45…

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Q: Consider a condensing heat exchanger operating with two separate fluids, R-134a and the water.…

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Q: Define the system to be a container full of steam. If the steam condenses, did the system hae a…

A: Steam is a substance that is a gaseous phase of water. The steam can be generated by evaporation or…

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.