Q. At $27{^\circ}$ the ratio of root mean square speeds of ozone to oxygen is
A) $\sqrt{(3/5)}$
B) $\sqrt{(4/3)}$
C) $\sqrt{(2/3)}$
D) $0.25$
Explanation
(c)
$\frac{{U_{O}}_{3}}{{U_{O}}_{2}} = \sqrt{\frac{{M_{O}}_{2}}{{M_{O}}_{3}}} = \sqrt{\frac{32}{48}} = \sqrt{\frac{2}{3}\ }$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.