Pressure on a wall being bombarded by nitrogen molecules
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4.60 x 10^23 nitrogen molecules (N_2) collide with a 18.0 cm^2 wall each second. Assume that the molecules all travel with a speed of 400 m/s and strike the wall head on.
What is the pressure on the wall?
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This solution provides a neat, step-by-step solution of how to calculate pressure on a wall due to bombardment of nitrogen (N_2) molecules.
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Molecular mass of nitrogen gas = 28
1 mole of nitrogen gas = 28 g
One mole of every substance contains 6.023 x 1023 molecules (Avogadro's number).
Mass of 1 molecule of nitrogen = m = 28/(6.023 x 1023) = 4.65 x 10-23 g or 4.65 x 10-26 kg ...
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