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14.2 Specific heat capacity and latent heat

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Question 45
H

A 0.20 kg mass of a liquid at its freezing point releases 12000 J. Its specific latent heat of fusion is 1.5 × 105 J/kg. What percentage of the sample remains liquid? Use Q=mLQ=mLQ=mL.

[1]
A

92%92\%92%

B

60%60\%60%

C

40%40\%40%

D

8%8\%8%

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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