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14.2 Specific heat capacity and latent heat

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Question 36
F

A student wraps a beaker of hot water in foam. Why does the foam reduce energy transfer?

[1]
A

It traps air that is a poor thermal conductor.

B

It traps air that is a good thermal conductor.

C

It allows air to circulate freely around the beaker.

D

It increases the temperature difference across the beaker.

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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