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3.2 Internal energy and energy transfers

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Question 5
F

The table gives the specific heat capacity of four substances.

Table: The specific heat capacity of four substances

SubstanceSpecific heat capacity in J/kg ∘C\text{J/kg}\ ^\circ\text{C}J/kg ∘C
Water4200
Ethanol2400
Aluminium900
Copper385
a.

A 1.0 kg sample of each substance is given 3850 J of energy. None of the samples changes state.

Use the table to determine which substance has the greatest rise in temperature. Give a reason for your answer.

[2]
b.

Calculate the rise in temperature of the 1.0 kg sample of copper.

[3]
c.

Water is pumped around the pipes of a central heating system.

Suggest why water is a good choice for this.

[1]
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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