Given the following reaction coordinate diagram for the reaction of A to give G,

Question

Given the following reaction coordinate diagram for the reaction of A to give G, answer the questions with regards to the correct position on the diagram.

1) How may intermediates are there?

2) Which intermediate is the most stable?

3) How many transition states are there?

4) Which transition state is the most stable?

5) Which is more stable, reactants or products?

6) What is the fastest step in the reaction? (answer using the format "letter going to letter", for example, A going to B)

7) Which step has the greatest activation energy? (same format as #6)

8) What is the rate-determining step in the conversion of A to G? (same format as #6)

Explanation / Answer

1) the intermediates are represented by the valley in the energy diagram so:

C and E represents the intermediates ( Two)

2) the intermediate with minimum free energy will be most stable (lowest valley)

Answer : E

2) The transition states are represented by the peaks in the diagrams so:

B , D and E (three)

4) the transition state with minimum free energy will be most stable

Answer: F

5) Again the one with free energy lowest will be more stable :

Answer: Product (G)

6) The fastest step will be with minimum energy difference between one stage to other

Answer: E to G

7) The one with highest activation energy will be:

C to E

8) In conversion from A to G will have three steps and the one with highest activation energy will be rate detemining step

Answer: C to E

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