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14.2 Specific heat capacity and latent heat

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Question 22
F

A student heats 250 g of water from 18 ∘C18\ ^\circ\mathrm{C}18 ∘C to 38 ∘C38\ ^\circ\mathrm{C}38 ∘C. The specific heat capacity of water is 4200 J kg−1 ∘C−14200\ \mathrm{J\,kg^{-1}\,{}^\circ C^{-1}}4200 Jkg−1∘C−1. What energy is transferred to the water? Use ΔQ=mcΔθ\Delta Q=mc\Delta\thetaΔQ=mcΔθ.

[1]
A

39900 J39900\ \mathrm{J}39900 J

B

21000 J21000\ \mathrm{J}21000 J

C

21000000 J21000000\ \mathrm{J}21000000 J

D

18900 J18900\ \mathrm{J}18900 J

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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