Question

What is the SI unit of heat?

Answer 1

Heat:

1. The vibrations of molecules or atoms increase as the temperature of a body rises. These vibrations are then transferred from one body to another.
2. The amount of energy used to vibrate the molecules in a system is referred to as heat stored in that body.
3. Heat is a form of energy that can be transformed into other forms between any two materials which are with different temperatures. For instance, heat is transformed to mechanical energy in motorized vehicles, It is turned to light energy in electric bulbs. It is eventually turned into electrical energy in thermal power plants.

SI unit of heat:

1. The SI unit of heat is Joule and is represented by $\mathrm{J}$.
2. The dimension of heat energy is $[M^1{L}^2{T}^{-2}]$.
3. Heat is defined as the energy transferred from one body to other because of their temperature difference.