It is very important to learn the difference between temperature, heat capacity and heat. Many people get confused by this. Heat is the work-less transfer of energy from one entity to another. Temperature is that which is equal when heat is no longer conducted between bodies in thermal contact. Heat capacity is how much the temperature changes as you add heat to a body that remains in the same state.
Note that the sentences in the above paragraph start growing lots of clauses (e.g., `` body that remains in the same state.''). This happens in thermodynamics because the exceptions to the rule have to be removed so that the logic can proceed from true statements. Unfortunately, it increases the effort that one must exert in reading (rigorous) thermodynamics books.