Copy and complete the sentence below, writing solids, liquids and gases in the correct spaces.

When materials are heated, as a rule, _____ expand more slowly than _____ and these expand more slowly than _____.

Define Specific heat capacity.

Define Specific latent heat of fusion.

Define Specific latent heat of vaporisation.

Explain the following equation to show the meaning of each symbol. Give the unit of each quantity.

$\mathrm{Energy}=mc∆T$

Explain the following equation to show the meaning of each symbol. Give the unit of each quantity.

$\mathrm{Energy}=mL$