How much energy is required to melt 7.3g of ice at 0^circC?

1 Answer
1s2s2p
May 16, 2018

2.4kJ

Explanation:

When a substance is being heated or cooled at its boiling or melting point, its temperature will stay constant for a moment, this is because energy is being used to actually melt or boil the substance than to make the molecules move faster.

This is given by:
DeltaE=LDeltam, where:

  • DeltaE = change in energy (J)
  • L = latent heat (J kg^-1)
  • Deltam = change in mass (m)

Specific latent heat of fusion (or melting) for ice/water is 334J g^-1

Deltam=334*7.3~~2,400J=2.4kJ

Related questions
Impact of this question
1002 views around the world
You can reuse this answer
Creative Commons License