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A steam radiator in a room at 75 F has saturated water vapor at 16 lbf/in.2 flowing through it, when the inlet and exit valves

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A steam radiator in a room at 75 F has saturated water vapor at 16 lbf/in.2 flowing through it, when the inlet and exit valves are closed. What is the pressure and the quality of the water, when it has cooled to 75F? How much work is done?

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After the valve is closed no flow, constant V and m,

v2 = 24.754 = 0.01606 + x2(739.584 - 0.01606) x2 = 0.0334 1W2 = ⌡PdV = 0

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