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2.2.3a Melting, boiling, condensation and solidification

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Question 205

An athlete perspires (sweats) during a race. Here are three statements about the process of sweat evaporating from the athlete's skin:

X: The sweat requires thermal energy to evaporate. Y: Thermal energy is transferred from the athlete's skin to the sweat. Z: The temperature of the athlete's skin decreases.

Which statements are correct?

A

X and Y only

B

X and Z only

C

Y and Z only

D

X, Y and Z

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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