What Is Thermal Velocity?

Thermal velocity of a substance is equal to the measure of temperature of the substance (solid, liquid and gas). Thermal velocity is the velocity or thermal motion of the particles of a substance. Thermal velocity of a gas or a liquid or a solid is not a vector quantity but it is a scalar quantity. It is the root mean velocity of the particles of the substance. The thermal velocity of particles can be measure by formula;

V_rms= [k_B T/ m]^1/2

V_rms= Root mean square velocity

k_B= Boltzmann constant

T= temperature

m= mass