Question

At the molecular level what can be said about Heat energy?

• A. Heat energy is equal to total mechanical energy of all its molecules
• B. Heat energy is equal to total potential energy of all its molecules
• C. Heat energy is equal to total kinetic energy of all its molecules
• D. Heat energy is equal to total heat energy of all its molecules

Answer 1

Answer: (A)

Heat energy is equal to total mechanical energy of all its molecules

At molecular level, heat energy is equal to mechanical energy of all molecules. Mechanical energy of the molecules is the sum of total Kinetic energy and potential energy of molecules.