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For a complex reaction A overset(k) rarr...

For a complex reaction `A overset(k) rarr `products
`E_(a1)=180kJ //mol e,E_(a2)=80kJ//mol ,E_(a3)=50kJ//mol`
Overall rate constant `k` is related to individual rate constant by the equation `k=((k_(1)k_(2))/(k_(3)))^(2//3)`. Activation energy `( kJ//mol )` for the overall reaction is `:`

A

140 kJ/mol

B

150 kJ/mol

C

43.44 kJ/mol

D

100 kJ/mol

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The correct Answer is:
A
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