Home Forums Chemistry How much faster do ammonia (NH3) molecules effuse than carbon monoxide (CO) molecules?

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  • #10017
    shrutis
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      Enter the ratio of the rates of effusion.

      #10833
      shrutis
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        Answer:
        Ammonia (NH3) molecules effuse 1.28 times faster than carbon monoxide (CO) molecules.

        Explanation:
        The kinetic molecular theory tells us that

        Vrms = √(3RT/MW) where Vrms is the root mean square velocity of an ideal gas. So Vrms is inversely proportional to MW and so will be the rate of effusion.

        Comparing NH3 and CO we have:

        rate(NH3)/rate(CO) = √MW(CO)/√MW(NH3) = √28.01/√17.03 = 1.28

        rate(NH3) = 1.28 x rate(CO)

        • This reply was modified 2 years, 5 months ago by ProtonsTalk.
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