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Grade 12Physical Chemistry

for a chemical reaction the energy of activation is 80 kj mole invers frequency factor is 4.0 into 10 to the power ten little mole inverse what is the rate constant at 400k?

Profile image of Sagar
8 Years agoGrade 12
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1 Answer

Profile image of Rituraj Tiwari
5 Years ago
Rate constant can be calculated from Arrhenius equation

k=A×e



E

a

R

T

Where,

k = Rate constant

A = Frequency factor

E

a

= Activation energy

R = Gas constant

T = Absolute Temperature

k

=

8.0

×

10

10

s



1

×

e



(

42.0 kJ/mol × 1000 J/kJ

8.314 J/(mol K) × 298 K

)

=3.48×10^3