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Explain, in terms of the air molecules, why the pressure at the top of a mountain is less

than at sea level.
For 3 marks

User Henry Tao
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1 Answer

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molecules collide with an object / surface and rebound, the molecules have a change in momentum hence force acts
there are less molecules per unit volume on top of mountain and the temperature is less causing them to have a lower speed of leading to less pressure
User Harkesh Kumar
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