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2.2 Thermal properties and temperature

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Question 123

A block of paraffin wax is heated until it is completely melted. The liquid wax is then allowed to cool and solidify.

What happens to the total mass of the wax during these changes of state?

A

Mass during melting decreases; mass during solidification stays constant

B

Mass during melting stays constant; mass during solidification stays constant

C

Mass during melting increases; mass during solidification decreases

D

Mass during melting stays constant; mass during solidification increases

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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