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2.2.2a Internal energy and temperature

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Question 22
a.

State and explain two design features of a liquid-in-glass thermometer that increase its sensitivity.

  • statement 1 and explanation
  • statement 2 and explanation
[4]
b.

The junction of a thermocouple has a very small mass. Explain why this characteristic is important for successfully measuring rapidly changing temperatures.

[2]
c.

The junction of a thermocouple thermometer has a heat capacity of 0.18 J/∘C0.18\text{ J}/^\circ\text{C}0.18 J/∘C.

Calculate the thermal energy required to increase the temperature of this junction from 25∘C25\circ\text{C}25∘C to 425∘C425\circ\text{C}425∘C.

[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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