# Specific heat capacity

When heat is supplied to a material, the particles that make up the material increases the speed of their motion. In a solid, the vibration of the particles becomes faster. In liquid, the particles move faster. As a result, the temperature of the material increases.

The amount of heat supplied and the increase in temperature is related by

$Q=mc\Delta \theta$

where $Q$  is the heat supplied, $m$  is the mass of the substance, $c$  is the specific heat capacity and $\Delta \theta$  is the change in temperature.

The specific heat capacity of a substance is defined as

The energy needed to increase the temperature of a substance by 1ºC is the specific heat capacity of the substance.