Question

what is thermal equilibrium​

Answer 1

Explanation:

• Two physical systems are in thermal equilibrium if there is no net flow of thermal energy between them when they are connected by a path permeable to heat. Thermal equilibrium obeys the zeroth law of thermodynamics.

Answer 2

Answer:

A system is in a state of thermal equilibrium if there is no transfer of heat (energy) between the various parts of the system or between the system and its surroundings. Two systems are said to be in thermal equilibrium when they are in thermodynamic states such that, if they are separated by a diathermic (heat conducting) wall, the combined system would be in thermal equilibrium, ie., there would be no net transfer of heat (energy) between them.

[Note: It is the energy in transfer that is called the heat]