Question

20 Which term is defined as a measure of the disorder of a system?
(1) heat (3) kinetic energy
(2) entropy (4) activation energy

Answer 1

Heat is a measure of energy in a medium
Kinetic energy is a measure of energy in an object that's resulting in movement
Activation energy is the amount of energy required to start a chemical reaction
Entropy is a measure of disorder in a system
The answer is Entropy

Answer 2

Entropy is the term defined as a measure of the disorder of a system. This occurs mainly when the thermal energy is not available for the mechanical things.