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2.1 Kinetic particle model of matter

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Question 128

The temperature of the gas inside a sealed, rigid container is decreased.

What happens to the average speed of the gas particles and to the frequency of collisions of the gas particles with the container walls?

A

Average speed: decreases; Frequency of collisions: less frequent

B

Average speed: decreases; Frequency of collisions: more frequent

C

Average speed: stays the same; Frequency of collisions: less frequent

D

Average speed: stays the same; Frequency of collisions: more frequent

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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