Answer :

meerkat18
The question is asking which of the following choices is defined as a measure of the disorder of a system, and base on the question and further research of the said question, I would say that the answer would be C. Entropy. I hope you are satisfied with my answer and feel free to ask for more 
jufsanabriasa

Answer:

C. Entropy

Explanation:

Heat is defined as the energy transferred from a hotter to a cooler body.

Kinetic energy is defined as the energy of a body in motion.

Entropy is a thermodynamic quantity that could be defined as a mesure of the disorder of a system. For a ordered crystal, entropy is zero.

Activation energy is defined as the minimum quantity of energy required to activate a particular chemical process.

I hope it helps!