Question

What is the latent heat of vapourisation and latent heat of fusion?

Answer 1

• Latent heat of vapourisation:

The amount of heat energy required to change water into its vapour at the boiling point of water without changing the temperature is called the latent heat of vapourisation. The specific value for the latent heat of vapourisation is 2268 J/g.

• Latent heat of fusion:

The amount of heat energy required to change ice into the water at the melting point of water without changing the temperature is called the latent heat of fusion. The specific value for the latent heat of fusion is 336 J/g.