Question

Which of the following best describes the relationship between two systems in thermal equilibrium?

a. No net energy is exchanged.


c. The masses are equal.


b. The volumes are equal.


d. The velocity is zero.

Answer 1

a. No net energy is exchanged.

Step-by-step explanation:

When two systems are in thermal equilibrium, it means they are at the same temperature and there is no temperature gradient between them. In this state, there is no net energy exchange between the two systems, as the heat flow into one system is equal to the heat flow out of the other system. The thermal equilibrium ensures that the energy distribution between the two systems remains constant.