Question: A 4-L pressure cooker has an operating pressure of 175 kPa. Initially, one-half of the volume is filled with liquid water and the other half

A 4-L pressure cooker has an operating pressure of 175 kPa. Initially, one-half of the volume is filled with liquid water and the other half by water vapor. The cooker is now placed on top of a 750-W electrical heating unit that is kept on for 20 min. Assuming the surroundings to be at 25°C and 100 kPa, determine
(a) The amount of water that remained in the cooker and
(b) The energy destruction associated with the entire process, including the conversion of electric energy to heat energy.

A 4-L pressure cooker has

4 L 175 kPa 750 W

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