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14.2 Specific heat capacity and latent heat

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Question 6

A ceramic brake disc of mass 2.5 kg is attached to a copper mounting ring of mass 1.2 kg. The specific heat capacity of copper is 385 J kg−1 ∘C−1385\ \mathrm{J\,kg^{-1}\,{}^\circ C^{-1}}385 Jkg−1∘C−1. As both parts cool through 40 ∘C40\ ^\circ\mathrm{C}40 ∘C, they transfer a total of 93 480 J93\,480\ \mathrm{J}93480 J to the surroundings. What is the specific heat capacity of the ceramic?

[1]
A

632 J kg−1 ∘C−1632\ \mathrm{J\,kg^{-1}\,{}^\circ C^{-1}}632 Jkg−1∘C−1

B

750 J kg−1 ∘C−1750\ \mathrm{J\,kg^{-1}\,{}^\circ C^{-1}}750 Jkg−1∘C−1

C

1560 J kg−1 ∘C−11560\ \mathrm{J\,kg^{-1}\,{}^\circ C^{-1}}1560 Jkg−1∘C−1

D

935 J kg−1 ∘C−1935\ \mathrm{J\,kg^{-1}\,{}^\circ C^{-1}}935 Jkg−1∘C−1

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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