Heat is transferred from one system to another as a result of _______ difference.

Thermodynamics deals with _______ states by outlining the relationship between energy and work.

One of the basic requirement for heat transfer is the presence of a _______ difference.

In fluids, heat is mainly transferred by _______.

In heat _______, the motion of the fluid itself carries heat from one place to another.

In solid, heat is transferred by _______ process.

In heat _______, heat energy is transferred among the adjacent parts of the material without the motion of the material itself.

Heat radiation process is in the form of _______ waves.

Heat conduction is one mode of _______ transfer.

The individual parts of a medium do not move as a whole in heat _______.