A quantity of PCl5 was heated in a 10 litre vessel as 250oC;PCl5(g)⇌PCl3(g)+Cl2(g). At equilibrium the vessel contains 0.1 mole of PCl5. 0.20 mole of PCl3 and 0.2 mole of Cl2. The equilibrium constant of the reaction is:
A
0.02
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B
0.05
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C
0.04
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D
0.025
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Solution
The correct option is A 0.04 PCl5(g)⇌PCl3(g)+Cl2(g)