What is a direct consequence of heat flow between two objects with different temperatures?

When two objects with different temperatures come into contact, heat flows from the hotter object to the cooler one. This process continues until thermal equilibrium is reached, which is the point at which the temperatures of both objects become equal. As a result, the correct response highlights that both objects will eventually attain the same temperature.

This process of heat exchange is dictated by the second law of thermodynamics, which states that heat naturally flows from areas of higher thermal energy to those of lower thermal energy. It is this fundamental principle that accounts for the temperature equalization observed in this scenario. Such a result is typical in thermal interactions, reinforcing the idea that heat transfer is a natural pursuit of balance between thermal energies in different substances.