The rate of a reaction decreased by 3 . 555 times when the temperature was changed from 40   ° C…

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 ________ .

Solution

logk2k1=Ea2.303R1T1−1T2

log3.555=Ea2.303R1303−1313

1.268×8.314×303=10 Ea

So, Ea=100 kJ

Asked in: JEE Main 2020 (06 Sep Shift 2)

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