# Is there any sort of correlation between melting point and the degrees of freedom for the molecules of a substance?

Suppose I had a solid whose molecules did not have rotational freedom. But if I were able to make it so that the molecules had rotational freedom ceteris paribus, is there a way to tell how the melting point would change compared to the original solid. Here I assume that the molecules have rotational freedom in the liquid phase always.

• It should increase as for entropy of the melting should diminish. Assuming nothing else change in the forces leading to the solid, which seems magic. – Alchimista Mar 11 '19 at 8:43