Heat that flows by conduction is the transfer of thermal energy between substances in contact. What must occur for this to happen?

A. The two systems must be the same temperature.
B. The two systems must not be touching each another.
C. One system must have higher kinetic energy than the other system.
D. The thermal energy of one system must be the same as the thermal energy of the other system.



Answer :

Final answer:

Heat conduction involves the transfer of thermal energy between substances at different temperatures due to collisions at the contact surface, leading to a spontaneous flow of energy.


Explanation:

Heat conduction is the process of thermal energy transfer between substances in contact due to temperature differences. For heat conduction to occur, the temperatures of the two systems must be different, resulting in a spontaneous flow of thermal energy from the hotter system to the cooler system. This transfer is facilitated by collisions at the contact surface, with energy flowing from regions of higher temperature to lower temperature.


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