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2.2.3a Melting, boiling, condensation and solidification

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Question 107

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

2.2.3a 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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