Homework Help: Chemistry

Posted by Missy* on Thursday, October 7, 2010 at 9:16pm.

He is the lightest noble gas component of air, and Xe is the heaviest. Perform the following calculations, using R=8.314J/(molXK)and M in kg/mol.
1. Find the average kinetic energy per mole of He and Xe at 30 degrees C.
2. Find the average kinetic energy per molecule of He at 30 degrees C.

Chemistry - DrBob222, Thursday, October 7, 2010 at 9:31pm
Isn't the average KE = 3/2 RT?
Divide by Avogadro's number to fine per molecule.

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