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The activation energies of two reactions are given as E a1 =40 J and E a2 = 80 J, then the relation between their rate constants can be written as:

The activation energies of two reactions are given as Ea1=40 J and Ea2= 80 J, then the relation between their rate constants can be written as:

Grade:12

1 Answers

AJIT AskiitiansExpert-IITD
68 Points
10 years ago

Dear krishna,

The arrhenius equation is K = A exp(-Ea/RT).  A is the pre - exponential factor and depends on reaction .

using this relatipon we can find easily ,

  K1/k2 =  (A1/A2) *exp((Ea2 - Ea1)/RT)  

putting values , we get ,   

K1/k2 =  (A1/A2) *exp(40/RT) 

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