Question: A steam radiator (used for space heating) has a volume of 20 L and is filled up with steam at 200 kPa and 250oC. Now

A steam radiator (used for space heating) has a volume of 20 L and is filled up with steam at 200 kPa and 250oC. Now the inlet and exit ports are closed. As the radiator cools down to a room temperature of 20oC, determine
The heat transfer and show the process on a p-v diagram.

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