Question

explain the term residual entropy.

Answer 1

Residual entropy is the difference inentropy between a non-equilibrium state and crystal state of a substance close to absolute zero.

Answer 2

the term is used in condensed matter physics to describe the entropy at zero Kelvin of a glass or plastic crystal referred to the crystal state, whose entropy is zero according to the third law of thermodynamics..it occurs if the material can exist In many different states when cooled...