The particle model

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Question 3
Medium

This question is about the behaviour of gas particles according to the kinetic theory of matter.

a.

Explain how cooling a sample of gas (reducing its temperature) inside a rigid, sealed container affects the pressure of the gas. In your explanation, refer to the motion of the gas particles and their collisions with the container walls.

[4]
b.

A compressed gas cylinder contains a fixed mass of nitrogen gas at a constant temperature. The gas has a volume of 0.045 m3 and a pressure of 360,000 Pa360,000\text{ Pa}360,000 Pa.

Calculate the constant for this gas. Use the equation: pressure×volume=constant\text{pressure} \times \text{volume} = \text{constant}pressure×volume=constant

[3]

The particle model Questions

  1. GCSE
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