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Question -

The rate of the chemical reactiondoubles for an increase of 10 K in absolute temperature from 298 K. Calculate Ea.



Answer -

It is given that T1 = 298 K

T2 =(298 + 10) K

= 308 K

We alsoknow that the rate of the reaction doubles when temperature is increased by10°.

Therefore,let us take the value of k1 = k and that of k2 = 2k

Also, R = 8.314 J K−1 mol−1

Now,substituting these values in the equation:

 

We get:

= 52897.78 J mol−1

=52.9 kJ mol−1

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