Question

At 27${}^{\circ }$ C, the ratio of rms velocities of ozone to oxygen is

• A. $\sqrt{\frac{3}{5}}$
• B. $\sqrt{\frac{4}{3}}$
• C. $\sqrt{\frac{2}{3}}$
• D. 0.25

Answer 1

The correct option is C

$\sqrt{\frac{2}{3}}$

$\frac{U_{O_3}}{U_{O_2}}=\sqrt{\frac{M_{O_2}}{M_{0_3}}}=\sqrt{\frac{32}{48}}=\sqrt{\frac{2}{3}}$