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84.Can cataly...

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84.Can catalyst change Arrhenius constant

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Q. A catalyst can change the :

Q. A hydrogenation reaction is carried out at

500 K

. If the same reaction is carried out in the presence of a catalyst at the same rate, the temperature required is

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. Calculate the activation energy of the reaction, if the catalyst lowers the activation energy by

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(Assume Arrhenius factor to be same during the above temperature change)

Q. In the Arrhenius equation

K = A e^{- E a / R T}

the rate constant k equal to the Arrhenius constant (A) when:

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will be equal to the rate constant when:

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