Chemistry

Problem

Which mathematical relationship best describes how the root-mean-square (rms) speed

u_{\text{rms}}

of a gas depends on its molar mass

M

when the temperature is held constant? a)

u_{\text{rms}} \propto \sqrt{M}

u_{\text{rms}} \propto \dfrac{1}{M}

u_{\text{rms}} \propto \dfrac{1}{\sqrt{M}}

u_{\text{rms}}

is independent of

M