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3.2 Internal energy and energy transfers

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Question 24
H

A 2.0 kW heater warms 5.0 kg of water for 3.0 minutes. The specific heat capacity of water is 4200 J/kg ∘C4200\ \text{J/kg}\ ^\circ\text{C}4200 J/kg ∘C. No energy is transferred to the surroundings. What is the temperature rise of the water?

[1]
A

17 ∘C17\ ^\circ\text{C}17 ∘C

B

29 ∘C29\ ^\circ\text{C}29 ∘C

C

86 ∘C86\ ^\circ\text{C}86 ∘C

D

100 ∘C100\ ^\circ\text{C}100 ∘C

Markscheme

3.2 Internal energy and energy transfers Questions

  1. GCSE
  2. /Physics
  3. /3.2 Internal energy and energy transfers

40 exam-style questions on AQA GCSE Physics 3.2 Internal energy and energy transfers, covering 3.2.1 Internal energy, 3.2.2 Temperature changes in a system and specific heat capacity, and 3.2.3 Changes of state and specific latent heat. Each one has a worked solution and a mark scheme showing where the marks go.

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