Question

explain the process of conduction of heat through metal rod. why are metals good conductors of heat as well as electricity.

Answer 1

When a metal rod is heated, the kinetic energy of the molecules increases and the heat energy thus produced by the vibration of molecules gets transferred from one molecule to another and hence, metal rod conducts heat.
Metals are good conductor of heat as well as electricity as in both cases the kinetic energy of the molecules increases and allows the electricity/heat to pass through them.