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2.2 Thermal properties and temperature

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Question 168

A person rubs a small amount of liquid hand sanitizer onto their hands. The sanitizer evaporates quickly, making their hands feel cold. Here are three statements about this process:

  1. The liquid sanitizer requires energy to evaporate.
  2. The sanitizer transfers thermal energy to the person's skin.
  3. The temperature of the person's skin decreases.

Which statements are correct?

A

1 and 2 only

B

1 and 3 only

C

2 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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