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

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

Explanation:

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