Question

The rate constant of a reaction at 500k and 700k are 0.02s^-1 and 0.07s^-1 respectively. Calculate the values of Ea and A

Answer 1

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Here is Your Answer....!!!!!
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〽⭐Actually welcome to the concept of the Arrhenius Equation...

〽⭐Basically after solving we get .....

Answer 2

Explanation:

Concept :- Rate constant (k) is related to activation energy Ea by the equation :-

It is given by the formula..

log(k2/k1)=Ea/2.303R(1/T1 -1/T2)

log(.07/.02)=Ea/2.303*8.314(1/500-1/700)

Ea=18228kJ

now again we have

k=Ae^(-Ea/RT)

.02=Ae^(-18228/8.314*500)

A=1.6s^-1

The above are the values of Ea and A