Question

Problem 6
How much boiling water at 100°C is needed
to melt 2 kg of ice so that the mixture which
is all water is at 0°C?
[Specific heat capacity of water = 4.2 JKg
and Specific latent heat of ice = 336 Jg ').​

Answer 1

Answer:

Explanation:

Law of conservation of energy would do it.

Heat required by 2 kg of ice to melt=2000×336=672,000 J

Heat used by ice=heat provided by water

So, 672,000=mx4.2×(100-0)

m=1600g or 1.6 Kg