A piston-cylinder assembly contains 2 lb of water, initially at 100 lbf/in² and 350°F. The water undergoes two processes in series:
a constant-pressure process followed by a constant volume process.
At the end of the constant-volume process, the temperature is 300°F and the water is a two-phase liquid-vapor mixture with a quality of 50%. Neglect kinetic and potential energy effects.
Determine the work and heat transfer for each process, all in Btu.

answer:

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Explanation:

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0.76kg

Explanation:

0.76kg

A large dynamometer operates a pump that circulates a viscous fluid through a restrictive fluid circuit. ... Under Steady Operating Conditions, Heat Loss From The Fluid Is Measured As 150 KW When The Shaft Is Rotating At 1000 Rpm, And 275 KW When The Shaft Speed Increases To 2000 Rpm. The Pump Efficiency Varies ...

Explanation: