Question

Difference between the term internal energy and heat energy

Answer 1

Thermal' energy and 'Heat' energy mean the same thing. ... If you add Thermal Energy to a substance its Internal Energy will increase. Internal Energy is defined as the sum of the random distribution of the kinetic and potential energies of the molecules/atoms in a substance

Answer 2

Internal energy

Internal energy is the energy which is stored inside the body of any organism.

Internal energy can be potential or kinetic energy also.

It is not transferred unless it changes its form to kinetic energy.

Heat energy

Heat energy is the internal kinetic energy in an object.

It is always in the form of kinetic energy of molecules.

It can be transferred from hot object to cold object.