What direction does heat always flow?
Answers
Answer:
And unless people interfere, thermal energy — or heat — naturally flows in one direction only: from hot toward cold. Heat moves naturally by any of three means. The processes are known as conduction, convection and radiation.
FLOW OF HEAT
Heat tends to flow from body of higher temperature to body to lower temperature.
EXPLAINING THE HEAT FLOW THERMODYNAMICALLY:
* When there is a temperature differential between two systems that are in continual touch with one other, heat will always move from one system to the other until both systems reach thermal equilibrium.
* We know that the entropy of a closed system can never decrease because of the second rule of thermodynamics. As a result of this equation, we may deduce that heat will always travel from a higher temperature to a lower temperature.
* The term "heat" refers to a type of energy. The heat energy will be gained by the atoms in the system with a greater temperature, and their vibration will rise. The atoms or molecules in the system with a lower temperature are not vibrating and have a lower temperature.
* As a result, the vibrating atoms of the hot system collide with the vibrating atoms or molecules of the cold system, transferring the energy received from the hot system.
* As a result, the energy of the atoms or molecules in the system with the lower temperature will rise, and this energy will ultimately be released, causing the system's temperature to rise. As a result, we may state that heat always moves from a higher to a lower temperature.