Question

At 27°C the ratio of rms velocities of ozone to oxygen is

(a) \(\sqrt{3/5}\)

(b) \(\sqrt{4/3}\)

(c) \(\sqrt{2/3}\)

(d) 0.25

Answer 1

Correct option is (c) \(\sqrt{2/3}\)

At constant temp,

\(\frac {uO_3}{uO_2} = \sqrt{\frac{M_{O_2}}{M_{O_3}}} = \sqrt{\frac {32}{48}} = \sqrt{\frac 23}\)