all molecular movement stops at absolute zero.

The entropy of a hypothetical pure, perfect, crystalline sustance at absolute zero temperature is zero.

This law states if all the thermal motion of molecules ( kinetic energy) could be removed, a state called absolute zero would result and all energy would be randomly distributed.

The statement that every substance has a finite positive entropy, and the entropy of a crystalline substance is zero at the temperature of absolute zero. Modern quantum theory has shown that the entropy of crystals at 0 K is not necessarily zero. If the crystal has any asymmetry, it may exist in more than one state; and there is, in addition, an entropy residue deriving from nuclear spin. See thermodynamic probability.

The third law of thermodynamics is an axiom of nature regarding entropy and the impossibility of reaching absolute zero of temperature.