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December 21, 2014

Homework Help: Chemistry

Posted by Hannah on Wednesday, January 18, 2012 at 8:27pm.

Which molecule below has the greatest average velocity at 100 degrees celsius?

He, Cl2, Xe, O2, NO2

I know that I already posted this the other day and the response I was given was to use the root mean squared equation. I know that the molecule with the smallest mm will be the fastest and I used the root mean squared equation but I think I did it wrong. The answer I chose was Xe as the greatest because I came up with 0.0076 but now I am confused and do not think I did this right. The regular mm of Xe is the biggest number out of all the answers so then Xe would not be the answer.

Could someone please just make sure I did this correct? Thank you!!

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