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Explain, in terms of the behaviour of molecules, how a gas exerts a pressure on the walls of its container. (4)

This question is 4 marks so you need to make at least 4 points.

These types of questions just require memorising the 4 points:

Lots of molecules collide with the walls.

The molecules change momentum as they collide with the walls.

Force is the rate of change of momentum.

Pressure = force/area.

Remember these 4 points and you'll get full marks for the question.

Jake F. GCSE Maths tutor, GCSE Physics tutor, A Level Physics tutor, ...

1 year ago

Answered by Jake, an A Level Physics tutor with MyTutor


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Louis S.

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Degree: Natural Sciences (Masters) - Durham University

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“About me: Hey everyone, I'm Brad! I'm studying for a Masters degree in Natural Sciences at Durham, specializing inMaths and Physics. Even while studying at school, I loved the sciences, and I loved being able to help people fully come...”

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Jake F.

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Degree: Physics (Masters) - Durham University

Subjects offered: Physics, Maths

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“About me: I am a second year physicist at Durham University. I have always had a passion for the science subjects andhope to instill that passion in you. I have always been an academic student acheiving high GCSE grades across the boa...”

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