Q. The reaction,$2SO_{2}(g) + O_{2}(g) \rightleftharpoons 2{SO}_{3}(g)$ is carried out in a $1\ dm^{3}$ vessel and $2\ dm^{3}$ vessel respectively. The ratio of the reaction velocities will be
A) 1 : 4
B) 2 : 4
C) 1 : 8
D) 8 : 1
Explanation
(d)
$2SO_{2}(g) + O_{2}(g) \rightleftharpoons 2{SO}_{3}(g)$
For $1\ dm^{3},\ \ R = k\left\lbrack SO_{2} \right\rbrack^{2}\lbrack O_{2}\rbrack$
$R = k\left\lbrack \frac{1}{T} \right\rbrack^{2}\left\lbrack \frac{1}{1} \right\rbrack = 1$
For $2\ dm^{3},\ \ R = k\left\lbrack \frac{1}{2} \right\rbrack^{2}\left\lbrack \frac{1}{2} \right\rbrack = \frac{1}{8}$
So, the ratio is 8 : 1
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.