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JEE Main201910 Jan 2019Morning ShiftChemistryChemical KineticsActual

Consider the given plots for a reaction obeying Arrhenius equation ( 0 ° C < T < 300 ° C ) : ( K and E a are rate constant and activetion energy, respectively ) (I) (II)

Options

  1. AI is wrong but II is right
  2. BBoth I and II are wrong
  3. CI is right but II is wrong
  4. DBoth I and II are correct

Correct answer

D. Both I and II are correct

Step-by-step solution

K = A e - E a / R T K decreases exponentially with E a ∴ The first graph is correct. But temperature is given in o C So, K ≠ 0 at 0 o C . ∴ For temperature between 0 o C and 300 o C , the graph will come like (II)

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