1. The problem statement, all variables and given/known data 1 kg of H20 goes through a reversible adiabatic proces from 220kPa, 200C to 50C in the final state. What is the pressure final and volume final? Assume S1=s2 2. Relevant equations Conservation of Energy 3. The attempt at a solution Found S to be 7.5080, was thinking I could find this relating to 30°C, but missing something.