2 kg of saturated liquid water is to be boiled at a constant pressure of 100 kPa in a piston–cylinder device until the water is all saturated vapor. Determine the work and heat transfer for the...

2 kg of saturated liquid water is to be boiled at a constant pressure of 100 kPa in a piston–cylinder device until the water is all saturated vapor. Determine the work and heat transfer for the process.

2.5 kg of saturated water vapor is to be condensed at a constant pressure of 160 kPa in a piston–cylinder device until all the water is a saturated liquid. Determine the work and heat transfer for the process.