Superheated wet steam in a pipe passes through a throttled v

Superheated wet steam in a pipe passes through a throttled valve and exhausts to atmospheric pressure (14.7 psia) at a temperature of 300 °F . The process is adiabatic and aergonic. Using the Thermodynamic Tables to Accompany Modern Engineering Thermodynamics, what is the moisture content of the steam in the pipe?

Solution

Since steam is superheated so moisture content will be zero.