1. The problem statement, all variables and given/known data For a particular sample of monatomic gas, the rate of change of pressure with volume under isothermal conditions is -2 x 10^7 Pa m^-3. Calculate the rate of change under adiabatic conditions. 2. Relevant equations isothermal: dP/dV = -2 x 10^7 Q = nRTln(Vf/Vi) monatomic: PV^(5/3) = constant adiabatic: dU = dW 3. The attempt at a solution I feel like this question should be easy but I just don't even know how to approach it. I'd be extreme grateful if anybody could point me in the right direction. Thanks.