Question

What is Absolute zero (or 0 Kelvin)?

Answer 1

Absolute zero is the temperature at which by theoretical concept, molecular motion completely stops.

Answer 2

Absolute zero is the lowest limit of the thermodynamic temperature scale,

Astate at which the enthalpy and entropy of a cooled ideal gas reach their minimum value, taken as 0!!

it is usually used term in thermodynamics.. both in physics and chemistry!!