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JEE Advanced2007ChemistryChemical KineticsActual

Consider a reaction a G+b H products. When concentration of both the reactants G and H is doubled, the rate increases by eight times. However, when concentration of G is doubled keeping the concentration of H fixed, the rate is doubled. The overall order of the reaction is

Options

  1. A0
  2. B1
  3. C2
  4. D3

Correct answer

D. 3

Step-by-step solution

a G+b H Product Suppose order of reaction =n When concentration of both G and H is double than rate increase by eight times. aligned rate & =k( reactants )^n (2)^8 & =k(2)^n (2)^3 & =k(2)^n n & =3 aligned when concentration of G is doubled than concentration H is fixed, the rate is double. than rate [G]^1[H]^2

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