Question

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

Answer 1

Could you be more specific? How big a scale is your 'macro' and how small is the 'micro?'

Answer 2

I do not know ..... I got a question ..... so I am looking for the answer but can not find it anywhere

Answer 3

It is a little vague, but what I can tell you is that internal energy is the sum of all the kinetic energies of the particles that make up a system (such as the molecules in a solid object, for example).
On a particular 'macro' scale, that object can interact with another one through heat transfer, but that depends on the difference between their average internal kinetic energies and not on the total internal energy of either one.

On a 'micro' scale such as within the object in question, the total internal energy doesn't give any information about the kinetic energies of individual particles.

Answer 4

thank you for information

Answer 5

we got the same question, but i think i was meant in this way, as in microscopic level that this ane atoms and moleculs, and on macroscopic that this is sistem of moleculs and atoms. This question was in context of boltzmann constant and thermodinamics

Answer 6

That's what I figured. I gave my reasoning in terms of thermodynamics.
On the level of atoms and molecules, each has its own kinetic energy, and one can only measure the average kinetic energy of the system, or the total internal energy of the system.