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14.2 Specific heat capacity and latent heat

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Question 12

A heater transfers 63 000 J63\,000\ \mathrm{J}63000 J of energy to 0.30 kg of solid material X, which is at its melting point. All of this energy is used to melt the material, and all of the material melts.

a.

Calculate the specific latent heat of fusion of material X.

[2]
b.

Explain why the temperature of the material does not change while it is melting.

[2]
Markscheme

14.2 Specific heat capacity and latent heat Questions

  1. GCSE
  2. /Physics
  3. /14.2 Specific heat capacity and latent heat

110 exam-style questions on Edexcel GCSE Physics 14.2 Specific heat capacity and latent heat, covering 14.2.1 Heating, temperature and changes of state, 14.2.2 Specific heat capacity and specific latent heat, 14.2.3 Specific heat capacity calculation, 14.2.4 Specific latent heat calculation, and 14.2.5 Reducing energy transfer through thermal insulation. Each one has a worked solution and a mark scheme showing where the marks go.

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