Question

4) will heat transfer if the temperature of two objects is the same? ​

Answer 1

Answer:

As we have seen in the zeroth law of thermodynamics, when two objects are placed in contact heat (energy) is transferred from one to the other until they reach the same temperature (are in thermal equilibrium). When the objects are at the same temperature there is no heat transfer.

Answer 2

Explanation:

If two objects of the same temperature are in contact, heat is exchanged via collisions of molecules in both directions. At a macroscopic level, we cannot measure any changes so we say no heat is being transferred. Objects can exchange heat through radiation, too.