A 1 kg sample of water vapor initially at 300 kPa and 250 degrees C cools at constant pressure with no internal irreversibilities until its temperature is 30 degrees C. Determine the work, the heat transfer and the exergy change accompanying this process.
w(out) = -238.6 kJ/kg
q(in) = -2841.8 kJ/kg
delta phi = -572.5 kJ/kg