Question

Why internal energy is not sufficient to compare macro and micro states

Answer 1

Internal energy is the total of all the active energies of the particles that make up a framework, (for example, the atoms in a strong question, for instance). 
On a specific "macro scale" scale, that protest can communicate with another through warmth exchange, however that relies on upon the distinction between their normal inside dynamic energies and not on the aggregate inner vitality of it is possible that one. 
On a "micro scale" scale, for example, inside the protest being referred to, the aggregate interior vitality doesn't give any data about the active energies of individual particles.