Question

How much heat energy is needed to change 2.0 kg of ice at 0°C to water at 0°C?

Answer 1

`160000C`

Explanation:

In this process heat energy will be required just to change the sate of matter i.e required latent heat will have to supplied.

We know that latent heat required for melting of ice is `80Cg^-1`

So,for `2Kg` i.e `2000g`,heat energy required will be `2000*80=160000C`