For a reaction with

E_(a)=75.0k(J)/(m)ol

\ (a) Calculate the fraction of the collisions at

298K

having energies greater than or equal to

E_(a)*

(1 mark)\ (b) Calculate the ratio\

k( at 308K)/(k)( at 298K)

\ i.e. the factor by which the rate constant changes on increasing the temperature by 10 degrees from

298K

to

308K

. (1 mark)

1. For a reaction with Eaa=75.0kJ/mol (a) Calculate the fraction of the collisions at 298K having energies greater than or equal to Ea. (1 mark) (b) Calculate the ratio k(at308K)/k(at298K) i.e. the factor by which the rate constant changes on increasing the temperature by 10 degrees from 298K to 308K. (1 mark)