Specific Latent Heat

• The specific latent heat of a substance tells us how much energy is

  needed to change the state of 1 kg of substance at constant

  temperature.
• Specific latent heat of fusion is a Solid to a liquid or a liquid to a solid
• Specific latent heat of vaporisation is a liquid to a gas or a gas to a

  liquid
• Energy = mass x specific latent heat
• Elise places 48.2 grams of ice in her beverage. What quantity of

  energy would be absorbed by the ice (and released by the beverage)

  during the melting process? The heat of fusion of water is 333 J/g.


  Energy = mass x specific latent heat or E = mL

  E= 48.2 x 333

  E = 16050.6J