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2.1 Kinetic particle model of matter

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Question 122

A fixed mass of gas is trapped in a container. The volume of the container is decreased while the temperature of the gas is kept constant.

How does this change affect the average kinetic energy of the gas molecules and the rate of collisions of the gas molecules with the walls of the container?

A

Average kinetic energy stays the same; rate of collisions increases

B

Average kinetic energy increases; rate of collisions increases

C

Average kinetic energy stays the same; rate of collisions decreases

D

Average kinetic energy decreases; rate of collisions stays the same

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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