Question on energy and exergy analysis.

[nothingkwt]

Homework Statement

A frictionless piston cylinder device contains a saturated liquid-vapor mixture at 100 °C. During a constant pressure process 600 kJ of heat is transferred to the surroundings which is at 25°C. As a result, part of the water vapor contained in the cylinder condenses.

Homework Equations

Q-W_b = mΔu

The Attempt at a Solution

If I wanted to find out the properties of the water how can I do so if they only gave me 1 intensive property, and I don't know how to use the first law since there is boundary work (?) that I can't figure out how much since ΔV is unknown.

 

[Sunfire]

I am afraid it is unclear what is being solved for...