Question 1

Which of the following statements best describes the reaction shown in panel (a) of the diagram?

Accepted Answer

The reaction is both thermodynamically and kinetically stable.

Question 2

In the context of the diagrams, what does $$\Delta G^\ddagger$$ represent?

Accepted Answer

$$\Delta G^\ddagger$$ represents the activation energy, which is the energy barrier that must be overcome for the reaction to proceed.

Question 3

Which panel (a, b, c, or d) depicts a reaction that is spontaneous but slow at room temperature?

Accepted Answer

Panel (c)

Question 4

If a reaction has a large positive $$\Delta G^\ddagger$$ and a negative $$\Delta G^\circ$$, which of the following is true?

Accepted Answer

The reaction is thermodynamically favorable but kinetically slow.

Question 5

Which panel best represents a reaction that will not occur spontaneously under standard conditions?

Accepted Answer

Panel (b)

Question 6

A reaction with a small $$\Delta G^\ddagger$$ and a large negative $$\Delta G^\circ is $$best described as:

Accepted Answer

Both kinetically and thermodynamically favorable.

Question 7

Which panel (a, b, c, or d) would most likely require a catalyst to proceed at a reasonable rate at room temperature?

Accepted Answer

Panel (c)

Question 8

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

Accepted Answer

Panel (c)

Question 9

Which of the following best explains why a reaction with a large $$\Delta G^\ddagger$$ does not proceed rapidly at room temperature?

Accepted Answer

The activation energy barrier is too high for most molecules to overcome at room temperature.

Question 10

Which panel (a, b, c, or d) best represents a reaction that is both thermodynamically and kinetically unstable?

Accepted Answer

Panel (b)

Question 11

A reaction with $$\Delta G^\circ \u003e 0$$ and $$\Delta G^\ddagger$$ small is best described as:

Accepted Answer

Kinetically favorable but thermodynamically unfavorable.

Question 12

Which panel (a, b, c, or d) would most likely represent a reaction that can occur at low temperatures?

Accepted Answer

Panel (a)

Midterm Study Guide: Alkenes, Stability, Reaction Mechanisms, and Carbocation Chemistry

Study Guide - Practice Questions