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2.1 Kinetic particle model of matter

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Question 45

A rigid, sealed metal canister filled with gas is placed in a freezer, causing its temperature to fall.

What happens to the average speed of the gas molecules and to the pressure of the gas inside the canister as the temperature decreases?

A

Average speed decreases; gas pressure decreases

B

Average speed decreases; gas pressure increases

C

Average speed increases; gas pressure decreases

D

Average speed 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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