Boyle's law
2 marks · EasyA balloon filled with gas is left in a warm room. Answer the following questions.
State what happens to the average kinetic energy of the gas molecules as the temperature of the room increases.
Explain how this affects the motion of the gas particles.
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(a) It increases.
(b) The gas molecules move faster.
Common mistakes: Saying energy stays the same
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Marking points
B1 (a) · 1 mark · States average kinetic energy increases
B1 (b) · 1 mark · States the particles move faster/more rapidly
Worked solution
(a) As temperature increases, the average kinetic energy of the gas molecules increases. (b) This means the gas molecules move faster.