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Question

If a mixture 0.4 mole H2 and 0.2 mole Br2 is heated at 700 K at equilibrium, the value of equilibrium constant is 0.25×1010 then find out the ratio of concentrations of (Br2) and (HBr) (Report your answer as Br2HBr×1011)

A
70
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B
80
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C
90
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D
100
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Solution

The correct option is B 80
H2+Br22HBrt=00.40.2t=teq0.2y0.4=negligible=y
14×1010=0.4×0.40.2×yy=3.2×1010Br2HBr×1011=3.20.2×1010×1011=80

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