During an adiabatic process, the temperature of 5.50 moles of a monatomic idea gas drops from 495 C to 215 C. For this gas, find (a) the work it does, (b) the heat it exchanges with its surroundings, and (c) the change in its internal energy
I know work is P(delta V)
PV2=nRT2 so if I subtract to get the change,
P(deltaV)= 12797.4 Joules.
But my textbook says this isn't the answer.
Where did I go wrong?
I know the answer for b is zero, since that's the definition of an adiabatic process