Saturated liquid water at 10 MPa is throttled adiabatically

Saturated liquid water at 1.0 MPa is throttled adiabatically to a pressure of 0.4 MPa. W It the change in kinetic energy is negligible, the percentage of water that evaporates during this throwing process will be (a) 0.0% (b) 3.8% (c) 24.8% (d)7.4% (e) 100%

Solution

0%

Answer a is correct

As only pressure is changing

And no change in kinetic energy