Question

heat that flows by conduction is the transfer of thermal energy between substances in contact. what must occur for this to happen? the two systems must be the same temperature. the two systems must not be touching each another. one system must have higher kinetic energy than the other system. the thermal energy of one system must be the same as the thermal energy of the other system.

Explanation:

Heat conduction occurs due to a temperature difference. Temperature is related to average kinetic energy of particles. Heat flows from a system with higher - temperature (higher average kinetic energy) to a system with lower - temperature (lower average kinetic energy).

Answer:

C. One system must have higher kinetic energy than the other system.