Thermodynamics mainly deals with:

Options

A. interrelation of various forms of energy and their transformation from one form to another
B. energy changes in the processes which depend only on initial and final state of the microscopic system containing a few molecules
C. how and at what rate these energy transformation are carried out
D. the system in equilibrium state or moving from one equilibrium state to another equilibrium state

Answer

A, D

Explanation

Thermodynamics deals with:
transformation of energy from one form to other and also with the equilibrium state of system