Thermal equilibrium between two object exist when?

A. the temperature of both objects are equal
B. the quantity of heat of both objects is the same
C. the heat capacities of both objects are the same
D. one object losses heat continuously to the other

Correct Answer:

Option A – the temperature of both objects are equal

Explanation

Two thermal objects are said to be in thermal equilibrium when the temperature of both objects are equal. Generally, heat flows from an object at a higher temperature to the one at a lower temperature until both temperatures are the same, during which the two bodies are said to be in thermal equilibrium