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14.2 Specific heat capacity and latent heat

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Question 42
H

A liquid is heated by a 90 W heater. Its mass is 0.25 kg and its temperature rises at 0.12 ∘C/s0.12\ ^\circ\mathrm{C/s}0.12 ∘C/s. Energy is transferred to the surroundings at 15 W. The container absorbs negligible energy. What is the specific heat capacity of the liquid?

[1]
A

500 J kg−1 ∘C−1500\ \mathrm{J\,kg^{-1}\,{}^\circ C^{-1}}500 Jkg−1∘C−1

B

3500 J kg−1 ∘C−13500\ \mathrm{J\,kg^{-1}\,{}^\circ C^{-1}}3500 Jkg−1∘C−1

C

2500 J kg−1 ∘C−12500\ \mathrm{J\,kg^{-1}\,{}^\circ C^{-1}}2500 Jkg−1∘C−1

D

3000 J kg−1 ∘C−13000\ \mathrm{J\,kg^{-1}\,{}^\circ C^{-1}}3000 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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