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NEETChemistryChemical Kinetics

Which set represent 1st order reactions out of (I), (II) and (III)? where a = initial amount of reactant and x = amount of product at time t

Options

  1. AI, II and III
  2. BI and II
  3. CII and III
  4. DI and III

Correct answer

B. I and II

Step-by-step solution

k t = 2.303 log ⁡ a a - x log ⁡ a a - x = k 2.303 t … . ( I ) log ( a ) − log ( a − x ) = k 2.303 t log a − x = log a − k 2.303 t … . II t 1 2 = 0.693 k … . ( III )

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