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Iron II Sulphate

For the react...

Question

For the reaction ${2 S O}_{2} + O_{2} ⇌ {2 S O}_{3}$ , the unit of $K_{c}$ :

litre/mole

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mol/litre

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{(m o l l i t r e^{- 1})}^{- 1}

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{(l i t r e m o l e^{- 1})}^{2}

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Solution

The correct option is A litre/mole
$2 S O_{2} + O]_{2} ⇋ 2 S O_{3}$
$k_{c} = \frac{[S O_{3}]^{2}}{[S O_{2}]^{2} [O_{2}]}$
$△ n g = 2 - (2 H)$
$△ n g = - 1$
the unit of $k_{c}$ is $(m o l l i t r e^{- 1})^{△ n g}$
$l i t r e / m o l .$

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