A body has 15J of heat energy in a particular state. At the same state it has an internal energy of 30J. Assume no work is done, what will happen to the internal energy if 5J of heat is added to the system?

• A. Heat energy = 20J, Internal energy = 35J
• B. Heat energy = 15J, Internal energy = 30J
• C. Heat energy = 15J, Internal energy = 35J
• D. A body cannot have heat energy in a particular state