Question

physical quantity that determines the direction of flow of heat energy from one yto another body​

Answer 1

Answer:

Hey here is your answer!

Explanation:

Its Temperature

Answer 2

Answer:

Here we go: If there are two systems in contact with each other, then the direction of heat flow tells us that one body is at a higher temperature, and the receiving body is at a lower temperature. So, temperature is the physical quantity which determines the flow or DIRECTION of heat.