According to the concept of enthropy what will likely happen to most molecules over time?

They'll break down

Explanation:

Entropy is regarded as a measurable physical property which is associated with uncertainty and randomness. Entropy relates to the second law of thermodynamic, that has to do with how energy spread out.

There's an increase in the degree of randomness in a positive entropy and this ajwsgs brings about a breakdown of the affected molecules

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.