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Q.

1.2 moles of SO3 are allowed to dissociate in a 2 litre vessel the reaction is 2SO3(g)2SO2(g)+O2(g) and the concent ration of oxygen at equilibrium is 0.1 mole per litre. The total number of moles at equilibrium will be

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a

2

b

1.6

c

1.4

d

0.8

answer is B.

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Detailed Solution

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initial :    1.2             0            0              2SO3      2SO2+ O2 at 1.2 -2x          2x           x at equilibrium concentration of O2 = 0.1 nO22=0.1 nO2=0.2=x

Total =1.2-2x + 2x + x =1.2+0.2 =1.4

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