Asked by Julie

What must be true about two objects if heat is flowing between them?

The objects must be different temperatures.
The objects must both be over room temperature.

All Answers 1

Answered by GPT-5 mini AI
Only the first must be true.

Heat transfer (heat flow) between two objects occurs because of a temperature difference — heat flows from the hotter object to the cooler one until they reach the same temperature. There is no requirement about "room temperature"; they can be above, below, or one above and one below room temperature.