The slope of Arrhenius Plot lnk v/s 1 T of first order reaction is - 5 × 10 3 K . The value of E a of the reaction is. Choose the correct option for your answer. [Given R = 8 . 314 J K - 1 mol - 1 ] N

Question

The slope of Arrhenius Plot lnk v/s 1 T of first order reaction is - 5 × 10 3 K . The value of E a of the reaction is. Choose the correct option for your answer. [Given R = 8 . 314 J K - 1 mol - 1 ] NEET 2021

TestHub · Accepted Answer

Arrhenius equation is k = Ae - E a RT So, lnk = lnA - E a RT This is a straight-line equation of form y = mx + c where y = lnk , x = 1 T , m = - E a R and c = ln A m = - E a R - 5 × 10 3 K = - E a 8 . 314 E a = 8 . 314 × 5 × 10 3 Jmol - 1 = 41 . 5 kJ mol - 1

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