Question
Why does a substance having high electrical conductivity has a high thermal conductivity also?
Solution
Electricity and heat are conducted through free electrons.
The substance, which is a good conductor of electricity, has very large number of free electrons. These free electrons also conduct the heat and hence also a good conductor of heat.
The substance, which is a good conductor of electricity, has very large number of free electrons. These free electrons also conduct the heat and hence also a good conductor of heat.
