Question 1

Which of the following reaction coordinate diagrams (a, b, c, or d) represents a reaction that is both thermodynamically and kinetically stable?

Accepted Answer

Diagram a

Question 2

In the context of the provided reaction coordinate diagrams, which diagram best represents a reaction that is spontaneous and can occur at low temperatures?

Accepted Answer

Diagram a

Question 3

Which diagram shows a reaction that is thermodynamically stable but kinetically unstable?

Accepted Answer

Diagram d

Question 4

If a reaction is described as having a high activation energy and a positive $$\Delta G^\circ$$, which diagram best represents this scenario?

Accepted Answer

Diagram b

Question 5

Which of the following statements is true regarding the reaction shown in diagram c?

Accepted Answer

It is both kinetically and thermodynamically unstable.

Question 6

For a reaction to be spontaneous at room temperature, which of the following must be true?

Accepted Answer

$$\Delta G^\circ \u003c 0$$

Question 7

Which diagram would best represent a reaction that requires a catalyst to proceed at a reasonable rate at room temperature?

Accepted Answer

Diagram b

Question 8

If a reaction is described as 'kinetically stable but thermodynamically unstable,' which diagram best fits this description?

Accepted Answer

Diagram b

Question 9

Which of the following best describes the relationship between $$\Delta G^\ddagger$$ and reaction rate?

Accepted Answer

A lower $$\Delta G^\ddagger$$ corresponds to a faster reaction rate.

Question 10

Which diagram would most likely represent a reaction that is not spontaneous and can only occur at high temperatures?

Accepted Answer

Diagram b

Analyzing Reaction Stability and Spontaneity Using Energy Diagrams

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