At 298 K, samples of the isotopologues Cl (molar mass ) and Cl (molar mass ) are…

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

Problem

At 298 K, samples of the isotopologues

{}^{35}

_2

(molar mass

70.00\,\text{g mol}^{-1}

) and

{}^{37}

_2

(molar mass

74.00\,\text{g mol}^{-1}

) are compared. What is the ratio

v_{\text{rms}}({}^{35}\text{Cl}_2)/v_{\text{rms}}({}^{37}\text{Cl}_2)

? (a)

1.06

(b)

1.00

(c)

1.03

(d)

0.97