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Characteristics of Equilibrium Constant

For the react...

Question

For the reaction $2 S O_{2} + O_{2} ⇌ 2 S O_{3}$ , the unit of equilibrium constant is:

L m o l^{- 1}

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J m o l^{- 1}

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m o l L^{- 1}

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L^{2} m o l^{- 1}

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Solution

The correct option is A $L m o l^{- 1}$
Equilibrium constant of the given reaction can be written as:

$2 S O_{2} (g) + O_{2} (g) ⇋ 2 S O_{3} (g)$

Unit of concentration $= m o l e L^{- 1}$

$\Rightarrow K_{e q} = \frac{[S O_{3}]^{2}}{[S O_{2}]^{2} [O_{2}]} L . m o l^{- 1}$

Hence, option A is correct.

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For the reaction 2SO2+O2⇌2SO3, the unit of equilibrium constant is:

The correct option is A L mol−1Equilibrium constant of the given reaction can be written as:2SO2(g)+O2(g)⇋2SO3(g)Unit of concentration =mole L−1⇒Keq=[SO3]2[SO2]2[O2] L.mol−1Hence, option A is correct.

For the reaction $2 S O_{2} + O_{2} ⇌ 2 S O_{3}$ , the unit of equilibrium constant is: