Can anyone explain effusion to me? for example, i have a question, if 0.00705mol of N2O(g) effuses through an orifice in a certain period of time, how many moles of N2O3 would effuse in the same time under the same conditions. I know that the rate of effusion is inversely proportional to the square root of the molar mass of the substance, but how would I come up with a numerical answer? I also know that the answer has to be slower than the N2O, because N2O3 is heavier and therefore happens more slowly... Thank you!

Question

anonymous · Answer

I'm just taking a guess here but going of the statement 
" I know that the rate of effusion is inversely proportional to the square root of the molar mass of the substance"
wouldn't it be something that looks like this?

$$Effuse=\frac{1}{\sqrt{M_m}}$$

anonymous · Answer

let me know if this helps at all http://en.wikipedia.org/wiki/Effusion

anonymous · Answer

That's exactly what i'm working on, and i know the formulae, im just really confused about how to get numbers out of them...

anonymous · Answer

My only guess is to multiply M-m by the number of moles then take the square root of the ratio. Sorry I couldn't be more help.

anonymous · Answer

hmm, i'll try that, thank you!