If a stationary system has 2.00 times 102 kcal of work done on it and releases 5.00 times 102 kJ of heat into the surroundings, what is the change in internal energy of the system? An 80.0-gram sample of a gas was heated from 25 degree C to 225 degree C. During this process 346 J of work was done by the system (which was stationary), and its internal energy increased by 6875 J. What is the specific heat capacity of the gas?