Verified Solution • 2025–26 Session moderate

QAIPM-2012-Ch-1638: NEET 2012 Chemistry - Class 11 AIPM-2012-Ch-1638 Solution: Given the reaction between 2 gases represented by \(A_2\) and…

Given the reaction between 2 gases represented by

A_2

and

B_2

to give the compound AB(g)

A_2(g) + B_2(g) \rightleftharpoons 2AB(g)

At equilibrium the concentration of

A_2 = 3.0 \times 10^{-3}\ \text{M}

B_2 = 4.2 \times 10^{-3}\ \text{M}

of AB =

2.8 \times 10^{-3}\ \text{M}

If the reaction takes place in a sealed vessel at

527^\circ C

then the value of

K_c

will be 2.0 1.9 0.62 4.5

Step-by-Step Verified Solution

A 2 (g) + B 2(g) _ 2AB (g) ; K c = [ A B ] 2 [ A 2 ] [ B 2 ] = ( 2.8 _ 10 _ 3 ) 2 3 _ 10 _ 3 _ 4.2 _ 10 _ 3 = 0.62