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2.2.3a Melting, boiling, condensation and solidification

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Question 254

An engineer is calibrating a liquid-in-glass thermometer to mark the 0∘C0^\circ\text{C}0∘C (lower) and 100∘C100^\circ\text{C}100∘C (upper) fixed points on the Celsius scale under standard atmospheric pressure.

They have the following four setups available:

  • Setup W: A mixture of crushed pure ice and pure water.
  • Setup X: A mixture of ice and common salt.
  • Setup Y: The steam directly above pure water boiling at standard atmospheric pressure.
  • Setup Z: A boiling salt-water solution.

Which two setups should the engineer use to determine these fixed points?

A

Setup W and Setup Y

B

Setup W and Setup Z

C

Setup X and Setup Y

D

Setup X and Setup Z

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2.2.3a Melting, boiling, condensation and solidification Questions

  1. IGCSE
  2. /Physics
  3. /2.2.3a Melting, boiling, condensation and solidification

313 exam-style questions on CIE IGCSE Physics 2.2.3a Melting, boiling, condensation and solidification. Each one has a worked solution and a mark scheme showing where the marks go.

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