1. The problem statement, all variables and given/known data I am given the amount of moles of gas, how many joules of heat I put into the system, and a positive change in temperature. Then it says "calculate the molar heat capacities at constant volume and constant pressure of the gas." 2. Relevant equations q=CT, C(constant pressure)-C(constant volume)=nR, U= q+w, H=U+PV 3. The attempt at a solution I just don't know how to do this problem without knowing whether the temperature change occurs at constant volume or constant pressure. If I knew either of those the problem would be easy. I have q and delta(T), so I should be able to calculate a heat capacity. But I don't know which one it would be.