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2.1 Kinetic particle model of matter

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Question 193

A rigid, sealed container filled with gas is placed inside a freezer, causing its temperature to decrease.

What happens to the average speed of the gas molecules and to the pressure of the gas in the container as the temperature falls?

A

Average speed of the gas molecules decreases; gas pressure decreases

B

Average speed of the gas molecules decreases; gas pressure increases

C

Average speed of the gas molecules increases; gas pressure decreases

D

Average speed of the gas molecules increases; gas pressure increases

Markscheme

2.1 Kinetic particle model of matter Questions

  1. IGCSE
  2. /Physics
  3. /2.1 Kinetic particle model of matter

321 exam-style questions on CIE IGCSE Physics 2.1 Kinetic particle model of matter, covering 2.1.1 States of matter and changes of state, 2.1.2a Particle structure and motion in solids, liquids and gases, 2.1.2b Gas pressure and particle collisions, 2.1.2c Brownian motion, 2.1.3a The absolute scale of temperature, and 2.1.3b Pressure, volume and temperature of a gas. Each one has a worked solution and a mark scheme showing where the marks go.

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