A steam radiator in a room at 25°C has saturated water vapor at 110 kPa 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 30 °C? How much work is done?

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A steam radiator in a room at 25°C has saturated water vapor at 110 kPa 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 30 °C? How much work is done?
Transcribed Image Text:A steam radiator in a room at 25°C has saturated water vapor at 110 kPa 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 30 °C? How much work is done?
Saturated water vapor at a pressure of 125 kPa fills a .06 m' piston-cylinder device having a .1 m?
piston area. The cylinder is cooled until the temperature inside the cylinder drops to 35 C.
Determine the force required to keep the piston from moving and the amount of heat transferred.
Transcribed Image Text:Saturated water vapor at a pressure of 125 kPa fills a .06 m' piston-cylinder device having a .1 m? piston area. The cylinder is cooled until the temperature inside the cylinder drops to 35 C. Determine the force required to keep the piston from moving and the amount of heat transferred.
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