When 3 mole of A and 1 mole of B are mixed in 1 litre vessel the … - Vidyadip

MCQ

When $3$ mole of $A$ and $1$ mole of $B$ are mixed in $1$ litre vessel the following reaction takes place ${A_{(g)}} + {B_{(g)}}$ $\rightleftharpoons$ $2{C_{(g)}}$. $1.5$ moles of $ C$ are formed. The equilibrium constant for the reaction is

A
$0.12$
B
$0.25$
C
$0.5$
✓
$4$

✓

Answer

Correct option: D.

$4$

(d) $\mathop A\limits_{(3 - 0.75)} + \mathop B\limits_{(1 - 0.75)} \to \mathop {2C}\limits_{1.5} $

$K = \frac{{{{[C]}^2}}}{{[A]\,\,[B]}} = \frac{{{{(1.5)}^2}}}{{2.25 \times 0.25}} = \frac{{2.25}}{{2.25 \times 0.25}} = 4.0$.

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