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2.2 Thermal properties and temperature

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Question 326

A technician is calibrating a liquid-in-glass thermometer for a Celsius (∘C^\circ\text{C}∘C) scale. Which physical states of water under standard atmospheric pressure are used to define the lower fixed point (0∘C0^\circ\text{C}0∘C) and the upper fixed point (100∘C100^\circ\text{C}100∘C)?

A

Lower fixed point: temperature of a mixture of ice and salt; Upper fixed point: temperature of steam above boiling water.

B

Lower fixed point: temperature of pure melting ice; Upper fixed point: temperature of steam above pure boiling water.

C

Lower fixed point: temperature of pure melting ice; Upper fixed point: temperature of boiling liquid inside the thermometer.

D

Lower fixed point: temperature of freezing ethanol; Upper fixed point: temperature of steam above pure boiling water.

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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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