The direction of heat flow between two objects depends on - (1) Their masses (2) Their heat contents (3) Their temperatures (4) Whether they are in solid, liquid or gaseous state

The direction of heat flow between two objects depends on - (1) Their masses (2) Their heat contents (3) Their temperatures (4) Whether they are in solid, liquid or gaseous state
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(3) Their temperatures Explanation: Heat always flows from a body at higher temperature to a body at a lower temperature.
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