Question

which is the most stable molecule is thermodynamics​

Answer 1

Answer:

Graphite is thermodynamically the most stable form of carbon.

Answer 2

Thermodynamic stability occurs when a system is in its lowest energy state, or chemical equilibrium with its environment. This may be a dynamic equilibrium, where individual atoms or molecules change form, but their overall number in a particular form is conserved.

For the particular problem in hand the lowest energy state definition is more relevant for us .

Enthalpy of formation can be used for judging the energy states.

A negative enthalpy change implies that the product has released heat thus lowering the amount of energy present in the product.