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2.2 Thermal properties and temperature

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Question 99

Here are three statements about the calibration of a liquid-in-glass thermometer to define a Celsius scale:

  1. The lower fixed point of 0∘C0^\circ\text{C}0∘C is the temperature of melting pure ice at standard atmospheric pressure.
  2. The upper fixed point of 100∘C100^\circ\text{C}100∘C is the temperature of steam above pure boiling water at standard atmospheric pressure.
  3. Calibrating the scale by dividing the distance between the two fixed points into equal divisions assumes that the liquid expands uniformly with temperature.

Which statements are correct?

A

1 and 2 only

B

2 and 3 only

C

1 and 3 only

D

1, 2 and 3

Markscheme

2.2 Thermal properties and temperature Questions

  1. IGCSE
  2. /Physics
  3. /2.2 Thermal properties and temperature

528 exam-style questions on CIE IGCSE Physics 2.2 Thermal properties and temperature, covering 2.2.1 Thermal expansion of solids, liquids and gases, 2.2.2a Internal energy and temperature, 2.2.2b Specific heat capacity, 2.2.3a Melting, boiling, condensation and solidification, 2.2.3b Evaporation, and 2.2.3c Cooling by evaporation. Each one has a worked solution and a mark scheme showing where the marks go.

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