How much faster do ammonia (NH3) molecules effuse than carbon monoxide (CO) molecules? | ProtonsTalk

Tagged: ammonia, carbon monoxide, molar mass

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July 19, 2021 at 2:58 pm #10017
shrutis
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Enter the ratio of the rates of effusion.
July 21, 2021 at 9:30 pm #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, 9 months ago by ProtonsTalk.
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