If you had an uninsulated air compressor which required Win = 400 kW to take air from a state at 80 kPa and 20 °C and change it to a state at 800 kPa and 200 °C, what would the Q be? Assume the air enters via a 10 cm diameter pipe at 20 m/s. (a) -171 kW (b)-198 kW (c) -233 kW (d) -263 kW

Q: Qout = 45 kJ %3D A closed, rigid tank whose volume is 2 m contains 4.65 kg of air with the initial…

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Q: (a) Determine the work spent on the system if the compression is reversible as well as the exit…

A: GIVEN :- P1=200 KPaT1=250°CP2=3.5 MPa   SOLUTION :- taking the super heated steam properties from…

Q: A device submitted to the Pa- tent Office is shown schemati- cally in the figure to the right. Its…

A: To determine if steady-state operation of this device is thermodynamically permissible, we need to…

Q: Q3: 1kg of air can expand reversibly in cylinder behind a piston in such a way that the temperature…

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Q: If you had an uninsulated air compressor which required W(in)= 400 kW to take air from a state at 80…

A: Given data as per the question W(in)= 400 kW Initial pressure =80 kpa Initial temperature =200 c…

Q: Refrigerant R-134a at 500 kPa and 120 digits enters an adiabatic nozzle steadily with a velocity of…

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Q: Refrigerant R-134a to the compressor of a refrigeration machine It enters at 140 kPa pressure and…

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Q: An adiabatic expansion of air occurs through a nozzle from 120 psia and 96o F to 20 psia. The final…

A: Given data Inlet pressure ( P1)=120psia= 827.371kPa Outlet Pressure (P2)=20psia= 137.895kPa Inlet…

Q: Saturated liquid water at 100 kPa enters a well-insulated pump and exits at 4 MPa. Assume that the…

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Q: We take a 33 kg chunk of ice (Temp is 0°C) and submerge it in an isolated container. This container…

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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.