In the reaction, A + B 2C, at equilibrium, the concentration of A… - Vidyadip

MCQ

In the reaction, $A + B$ $\rightleftharpoons$ $2C$, at equilibrium, the concentration of $A$ and $B$ is $0.20\,\,mol\,\,{l^{ - 1}}$ each and that of $C$ was found to be $0.60\,\,mol\,\,{l^{ - 1}}$. The equilibrium constant of the reaction is

A
$2.4$
B
$18$
C
$4.8$
✓
$9$

✓

Answer

Correct option: D.

$9$

(d) $A + B$ $ \rightleftharpoons $ $2\,C$

${K_c} = \frac{{{{[C]}^2}}}{{[A]\,\,[B]}} = \frac{{{{[0.6]}^2}}}{{[0.2]\,\,[0.2]}} = 9$

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