Energy Present in a System That is Not Usable to Do

Question

Energy present in a system that is not usable to do work relates to the system's:
A) thermodynamics.
B) equilibrium.
C) work.
D) entropy.
E) temperature.

Accepted Answer

Energy present in a system that is not usable to do work is related to the system's entropy, which is a measure of the disorder or randomness of the system. This energy is often referred to as "waste" energy, as it cannot be harnessed to perform useful work.