what happens during heat transfer?\nheat always flows from cool to warm.\nheat always flows from warm to…

what happens during heat transfer?\nheat always flows from cool to warm.\nheat always flows from warm to cool.\nheat always flows from warm to hot.
Answer
Brief Explanations:
Heat transfer occurs due to a temperature difference. According to the second law of thermodynamics, heat naturally moves from a region of higher temperature (warmer) to a region of lower temperature (cooler) until thermal equilibrium is reached.
Answer:
Heat always flows from warm to cool.