Skip to content

Course home

Sign up

14.2 Specific heat capacity and latent heat

EasyMediumHard
12345678910111213141516171819202122232425262728293031323334353637
Question 23

A technician uses an electric heater to test an aluminium component. The accepted specific heat capacity of aluminium is about 900 J/kg ∘C900\ \text{J/kg}\,{}^\circ\text{C}900 J/kg∘C. The electrical energy supplied to the heater is 9000 J. The component has a mass of 0.50 kg and its temperature rises from 20 ∘C20\ ^\circ\text{C}20 ∘C to 38 ∘C38\ ^\circ\text{C}38 ∘C.

a.

Calculate the specific heat capacity of aluminium given by these measurements.

[3]
b.

Explain why the value calculated in (a) is different from the accepted value.

[2]
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.

Question bank