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14.2 Specific heat capacity and latent heat

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Question 39
F

A 0.20 kg sample of wax is at its melting point. Its specific latent heat of fusion is 150000 J/kg. It absorbs 9000 J without any temperature change. What mass remains solid? Use Q=mLQ=mLQ=mL.

[1]
A

0.14 kg0.14\ \mathrm{kg}0.14 kg

B

0.20 kg0.20\ \mathrm{kg}0.20 kg

C

0.06 kg0.06\ \mathrm{kg}0.06 kg

D

0.26 kg0.26\ \mathrm{kg}0.26 kg

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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