Question

What happens when two bodies at different temperatures are kept in thermal contact with each other?

Answer 1

1. When the two bodies at different temperatures are kept in thermal contact with each other, the net flow of energy is always from the object at the higher temperature to the object at the lower temperature.
2. As the energy flows, the temperature of the two objects approaches one another.
3. When the temperature is the same, there is no longer any net flow of energy, the objects are said to be in thermal equilibrium.