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2.1 Kinetic particle model of matter

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Question 11

A rigid metal canister contains helium gas.

The temperature of the helium gas in the canister is decreased. The volume of the canister remains constant.

Students are asked to suggest how this decrease in temperature will affect the movement of the helium atoms.

  1. The helium atoms will move slower on average.
  2. The helium atoms will collide with the canister walls less frequently.
  3. The helium atoms will collide with the canister walls with less force.

Which suggestions are correct?

A

1, 2 and 3

B

1 and 2 only

C

1 and 3 only

D

2 and 3 only

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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