If N_2, O_2, H_2,and He are filled separately | vedclass

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(C) According to the ideal gas equation,$PV = nRT$,where $n = \frac{m}{M}$.At constant pressure and temperature,the rate of diffusion or filling is in

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$H_2$

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(C) According to the ideal gas equation,$PV = nRT$,where $n = \frac{m}{M}$.At constant pressure and temperature,the rate of diffusion or filling is inversely proportional to the molar mass $(M)$ of the gas according to Graham's Law,or simply,for a fixed volume and pressure,the gas with the lowest molar mass will occupy the space most rapidly due to higher molecular velocity.The molar masses are: $N_2 = 28 \ g/mol$,$O_2 = 32 \ g/mol$,$H_2 = 2 \ g/mol$,and $He = 4 \ g/mol$.Since $H_2$ has the lowest molar mass,it will fill the tube first.

If $N_2, O_2, H_2$,and $He$ are filled separately in four car tubes at the same pressure,which gas will fill first?

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