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2.2.2a Internal energy and temperature

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1
Question 1
a.

Describe an experiment to determine the specific heat capacity of a copper block. Include in your answer:

  • the measurements made
  • any equations needed.
[5]
b.

A copper mug is initially at room temperature (20∘C20^\circ\text{C}20∘C). Hot water at (90∘C90^\circ\text{C}90∘C) is poured into the copper mug.

Explain why, after a short time, the copper mug and the water reach the same temperature.

[2]
c.

Explain, in terms of its particles, why the copper expands as the hot water is poured into the mug.

[2]
d.

Some water in the mug evaporates. Explain, in terms of water molecules, how evaporation causes the temperature of the remaining water to decrease.

[2]
Markscheme

2.2.2a Internal energy and temperature Questions

  1. IGCSE
  2. /Physics
  3. /2.2.2a Internal energy and temperature

119 exam-style questions on CIE IGCSE Physics 2.2.2a Internal energy and temperature. Each one has a worked solution and a mark scheme showing where the marks go.

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