How much heat is required to convert 0.3 kg of ice at 0°C to water at the same temperature

100,800 Jkg

The heat that is used to change the state of a mater is called latent heat.

In this case it is converting ice to water and it is called latent heat of fusion.

It is given by:

Heat = mc

where m is the mass of ice and l is the specific latent heat of fusion of ice.

l = 0.336 MJ

Heat = 0.3 * 0.336 MJ

= 0.3 * 0.336 * 10⁶

= 100,800 Jkg