Q. Which reaction is not affected by change in pressure?
A) $H_{2} + I_{2} \rightleftharpoons 2HI$
B) $2C + O_{2} \rightleftharpoons 2CO$
C) $N_{2} + 3H_{2} \rightleftharpoons 2NH_{3}$
D) $PCl_{5} \rightleftharpoons PCl_{3} + Cl_{2}$
Explanation
(a)
$H_{2}(g) + I_{2}(g) \rightleftharpoons 2HI(g)$
Number of moles of reactant = number of moles of products
2=2
So, this reaction is not effected by change in pressure or volume.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.