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A vessel of one litre capacity containin...

A vessel of one litre capacity containing 1 mole of `SO_(3)` is heated till a state of equilibrium is attained.
`2SO_(3(g))hArr 2SO_(2(g))+O_(2(g))`
At equilibrium, 0.6 moles of `SO_(2)` had formed. The value of equilibrium constant is

A

0.18

B

0.36

C

0.45

D

0.68

Text Solution

Verified by Experts

The correct Answer is:
D
`{:(,2SO_(3(g)),hArr,2SO_(2(g)),+,O_(2(g))),("Initial conc.","1.0 mole",,"0.0 mole",,"0.0 mole"),("Equilibrium ","0.4 mole",,"0.6 mole",,"0.3 mole"):}`
`rArr" Equilibrium constant is given by :"`
`K=([SO_(2)]^(2)[O_(2)])/([SO_(3)]^(2))=((0.6)^(2)(0.3))/((0.4)^(2))=0.675=0.68`
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