Question

If the contact area between two objects is
getting warm, what might you conclude?

Answer 1

Answer: Thermal equilibrium

Explanation :Heat will transfer thermal energy from the object at higher temperature to the one at lower temperature until they both reach the same temperature. The objects are then in thermal equilibrium, and no further temperature changes will occur if they are isolated from other systems. The systems interact and change because their temperatures are different, and the changes stop once their temperatures are the same. Thermal equilibrium is established when two bodies are in thermal contact with each other—meaning heat transfer (i.e., the transfer of energy by heat) can occur between them. If two systems cannot freely exchange energy, they will not reach thermal equilibrium. (It is fortunate that empty space stands between Earth and the sun, because a state of thermal equilibrium with the sun would be too toasty for life on this planet!)

Answer 2

Answer: The end result is thermal equilibrium.

Explanation: When two objects are touching for a specific period of time heat [thermal energy] always moves from a warmer substance to a cooler substance. In your case we have two objects of unknown temperature. The temperature between those objects is transferred/ conducted. Eventually, the heat conduction between two objects of unknown temperature results in the achievement of thermal equilibrium.