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14.2 Specific heat capacity and latent heat

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Question 20

In a laboratory test, two solid components R and S are heated without changing state. They have the same specific heat capacity. R absorbs 8400 J and its temperature rises by 14 ∘C14\ ^\circ\mathrm{C}14 ∘C. S absorbs 12000 J and its temperature rises by 8 ∘C8\ ^\circ\mathrm{C}8 ∘C. Use ΔQ=mcΔθ\Delta Q=mc\Delta\thetaΔQ=mcΔθ.

What is the ratio of the mass of R to the mass of S?

[1]
A

5:25:25:2

B

7:47:47:4

C

2:52:52:5

D

7:107:107:10

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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