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July 30, 2014

Homework Help: chemistry

Posted by d on Friday, December 31, 2010 at 3:06pm.

At 100 degrees celsius, the ratio of the average kinetic energy of oxygen molecules, O2, to the average kinetic energy of methane molecules, CH4, is:
A) 4:1
B) 1:4
C) 1:2
D) 1:1

I think it's D because the kelvin temperature is the same for both collection of gases, and under the Kinetic Molecular Theory, the avg. KE of a gas is directly proportional to its kelvin temperature. Is that right?

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