Question

In the beginning of the reaction, A =B+C, 2 moles of A are taken, oute
gets dissociated. What is the amount of dissociation of A?
(1) 0.5
(2) 1
(3) 0.25
(4)4.2​

Answer 1

Answer: 0.5 moles

Explanation:

The process of seperation of molecules into smaller particles in the beginning of reaction A breaks into B and C which is a reversible reaction.

initial moles of A=2 moles

A--------------------------B + C

t=0 2moles 0 0

t=eq 1.5moles 0.5 0.5

moles of A dissociated =2-1.5=0.5 moles

option A is correct