1. The problem statement, all variables and given/known data I'm getting a bit stuck with this problem.. Given a volume, it's specific heat at constant volume, an initial temperature, pressure (atmospheric) and the power of a heater within this volume, I am expected to calculate the change in temperature for the body. 2. Relevant equations I understand that Cv=du/dT. I also understand that the volume doesnt change as it is an isochoric process. We get dT= dq/Cv=du/Cv. I don't understnad how to get the heat value. I've converted the power of the heater from Watts to Joules per hour..