Two samples of ideal gas

CHEMISTRY · Single correct · AP · Chemistry · Properties of Substances and Mixtures · Properties of Substances and Mixtures

Problem

Two samples of ideal gas, hydrogen (molar mass 2.0 g/mol) and nitrogen (molar mass 28 g/mol), are held at the same temperature. What is the ratio

v_{\text{rms,H}_2}/v_{\text{rms,N}_2}

of their rms speeds? (a)

14

(b)

\dfrac{1}{\sqrt{14}}

(c)

\sqrt{14}

(d)

\sqrt{7}