# Thermodynamics

posted by
**Claire**
.

a rigid vessel of volume 1m(^3) contains steam at 20bar and 400 degrees Celcius. The vessel is cooled until the steam is just dry saturated. Calculate the mass of steam in the vessel, the final pressure of the steam and the heat rejected during the process.

The answers should be 6.62kg, 13.01bar and 2355kJ.

I only managed to calculate the mass of the steam. Can someone please tell me how to calculate the others? Thanks!