CHEMICAL KINETICS

[rugged falcon]

NEED HELP WITH THIS QUESTION

[ivory copper]

<@&1227988359910260737>

Note for OP

+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.

[cunning python]

Yo attempt please :)

[rustic igloo]

C is the answer

Not sure tho I have not revised kinetics

Since k2 is bigger than k1 the rxn is readily happening and P.E should be lowering so AB+I should be higher than A+P

I am bit confused between C and D tho

[cunning python]

since k1 is small, its activation energy Ea1, must be higher than Ea2. (distance b/w IAB and top of curve = Ea1 > distance b/w AB + I and top of next curve = Ea2).
This eliminates option D.
also, since the reaction is exothermic, the final energy must be lower than the initial energy, this eliminates b.
Now between a and c how doyou decide? :D

[rustic igloo]

Ohhh that makes a lot more sense

A

Since it’s said much smaller

[cunning python]

yea the rds should have the highest Ea, also the 'fast' step should have a low energy too.

[rugged falcon]

+solved @cunning python