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JEE Main20206 Sep 2020Evening ShiftChemistryChemical KineticsActual

The rate of a reaction decreased by 3 . 555 times when the temperature was changed from 40   ° C   to   30   ° C . the activation energy (in kJ   mol - 1 ) of the reaction is ________ .

Correct answer

0

Step-by-step solution

log k 2 k 1 = Ea 2 .303 R 1 T 1 − 1 T 2 log 3 .555 = Ea 2 .303 R 1 303 − 1 313 1 .268 × 8 .314 × 303 = 10   Ea So, Ea = 100   kJ

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