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Question

Two moles of NH3 when put into a previously evacuated vessel (one litre), partially dissociate into N2 and H2. If at equilibrium one mole of NH3 is present , the equilibrium constant is :

A
34mol2litre2
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B
2764mol2litre2
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C
2732mol2litre2
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D
2716mol2litre2
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Solution

The correct option is D 2716mol2litre2
2NH3=N2+3H2

Initial mole 2 0 0

Final Mole 1 12 32

Equilibrium constant

=32×32×32×12

=2716mol2ltr2

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