Thermal capacity=________________×_______________

Hint: The thermal capacity of the matter is known as the heat capacity of the matter. The thermal capacity of the matter is defined as the heat energy required to change the temperature by unit value.

Complete step-by-step answer:
The total internal energy of the particles of the system is known as the heat energy of the system. The total internal energy of the system of particles is the sum of the total kinetic energy and the total potential energy.
The change in the internal energy of the system of the particle can be done by supplying the heat energy of the system or by doing work.

The amount of the heat energy required to change the temperature of the system by unit value is known as the thermal capacity of the system. It is also known as the heat capacity of the system. The thermal capacity is the extensive property of the system. The unit of the thermal capacity is the joule per kelvin.

The formula for the thermal capacity is given as:
Thermal capacity = $m\times c$
Where, m is the mass of the substance and c is the specific heat of the substance

Note: Specific heat capacity is the intensive property of the system. It is defined as the heat energy required to change unit temperature of the unit mass. This property of the matter is not dependent on the mass of the substance.
Heat capacity and the specific heat capacity are two different quantities.