The root mean square velocity of one mole of a monoatomic gas having molar mass $M$ is $V_{rms}$. The relation between the average kinetic energy $(E)$ and the $V_{rms}$ is
- A$V_{rms} = \sqrt{\frac{3E}{2M}}$
- B$V_{rms} = \sqrt{\frac{2E}{3M}}$
- C$V_{rms} = \sqrt{\frac{2E}{M}}$
- D$V_{rms} = \sqrt{\frac{E}{3M}}$
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