Question

Why every object in universe want to minimize their potential energy?

Answer 1

This is a physical rather than a mathematical justification - ignore my answer if that isn't what you wanted!

All systems have some thermal motion so they explore the phase space in their immediate vicinity. If there is a nearby point with a free energy lower by some amount ΔG then the relative probability of finding the system at that point will be exp(−ΔG/RT). So if the energy is minimised by moving to that point, i.e.ΔG<0, we just have to wait and we'll find the system has moved there. The only place in phase space the system won't move is when the free energy is at a (local) minimum. That's why a system always (locally) minimises its free energy if you wait long enough.

Answer 2

Answer:

Explanation: I don't know how to do it thanks