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COMEDK2023Morning ShiftChemistryChemical KineticsActual

For a reaction, 2 A+B products, If concentration of B is kept constant and concentration of A is doubled then rate of reaction is

Options

  1. Ahalved
  2. Bdoubled
  3. Cquadrupled
  4. Dremain same

Correct answer

C. quadrupled

Step-by-step solution

The rate law for a reaction 2A + B products is given by the expression Rate = k[A]^ x [B]^ y , where x and y are the orders of reaction with respect to A and B respectively. Given that the reaction is 2A + B products, the order with respect to A is 2 based on the stoichiometry of the elementary reaction. The rate expression becomes Rate = k[A]²[B]^ y . When the concentration of A is doubled, let the new concentration be [A'] = 2[A] . The concentration of B is kept constant. The new rate Rate' is given by Rate' = k(

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