Chemistry

Problem

Helium has molar mass

4 \text{ g mol}^{-1}

and neon has molar mass

20 \text{ g mol}^{-1}

. The helium and neon are kept in the same container. What is the ratio of: a. a the average kinetic energies of molecules

\frac{\bar{E}_{\text{He}}}{\bar{E}_{\text{Ne}}}

b. b the average rms speeds of molecules

\frac{c_{\text{He}}}{c_{\text{Ne}}}