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14.2 Specific heat capacity and latent heat

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Question 20

A small steam generator changes 0.075 kg of water at its boiling point into steam.

The specific latent heat of vaporisation of water is 2.26 × 106 J/kg.

Calculate the thermal energy transferred to the water as it changes into steam.

Use the equation

Q=m×LQ = m \times LQ=m×L

[2]
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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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