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Characteristics of Equilibrium Constant

Units of Kc...

Question

Units of $K_{c}$ for the reaction of formation of $S O_{3}$ from $S O_{2}$ and $O_{2}$ are $g m o l^{- 1}$ .

True

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False

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Solution

The correct option is B False
The given reaction is :-
$2 {S O}_{2} (g) + O_{2} (g) ⇌ 2 {S O}_{3} (g)$
$\Rightarrow K_{C} = \frac{{[{S O}_{3}]}^{2}}{{[{S O}_{2}]}^{2} [O_{2}]}$
$\Rightarrow K_{C} = \frac{M^{2}}{M^{2} . M} = \frac{1}{M} = \frac{1}{\frac{m o l e s}{l i t r e}} = l i t r e {m o l}^{- 1}$

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