# Chemistry

posted by
**Missy***
.

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.