For the reaction A(g)+3B(g)⇌2C(g) at 27oC, 2 moles of A, 4 moles of B and 6 moles of C are present in 2 litre vessel. If Kc for the reaction is 1.2, the reaction will proceed in:
A
Forward direction
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B
Backward direction
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C
The reaction will always be in equilibrium
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D
none of these
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Solution
The correct option is A Forward direction Given reaction: A(g)+3B(g)⇌2C(g) QC=(nCV)2(nAV)(nBV)3 On putting values, QC=(62)2(22)(42)3=98=1.125 As, QC<KC so reaction will proceed in forward direction.