The rate constant of a reaction increases by five times on increase in temperature from 27 ° C to 52 ° C . The value of activation energy in kJmol - 1 is ___ .(Rounded-off to the nearest integer) R =

Question

The rate constant of a reaction increases by five times on increase in temperature from 27 ° C to 52 ° C . The value of activation energy in kJmol - 1 is ___ .(Rounded-off to the nearest integer) R = 8 . 314 J K - 1 mol - 1

TestHub · Accepted Answer

T 1 = 300 K , T 2 = 325 K , K 2 = 5 K ln K 2 K 1 = Ea R 1 T 1 - 1 T 2 or, ln 5 = Ea 8 . 314 1 300 - 1 325 or, Ea = 0 . 7 × 2 . 303 × 8 . 314 × 12 × 325 = 52271 J = 52 . 271 kJ Nearest integer answer will be 52 kJ

Chemistry - Chemical Kinetics Question with Solution | TestHub

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