Question

Which of the following comparisons or contrasts between endergonic and exergonic reactions is false?

1. Endergonic reactions have a positive ∆G and exergonic reactions have a negative ∆G.
2. Endergonic reactions consume energy and exergonic reactions release energy.
3. Both endergonic and exergonic reactions require a small amount of energy to overcome an activation barrier.
4. Endergonic reactions take place slowly and exergonic reactions take place quickly.

Short answer

Both endergonic and exergonic responses require a limited quantity of energy to conquer an initiation obstruction. Henceforth choice (d) is the right response.

Step-by-step solution

Concept Introduction

The primary distinction between exothermic response and exergonic response is that exothermic response manages enthalpy change in any substance cycle that is estimated as far as hotness in a shut framework, while exergonic responses manage free energy change of any synthetic response called Gibbs free energy.

Endergonic Reaction

An endergonic response is a synthetic response wherein the typical change in free energy is positive, and additional driving power is expected to play out this response. Therefore option (a) is true and it is an incorrect option.

Exergonic Reaction

An exergonic response means a synthetic response where the difference in the free energy is negative. This suggests an unconstrained response if the methodology is shut and the beginning and last temperatures are precise. Therefore option (b) is true and it is an incorrect option.

Energy required for both endergonic and exergonic reactions.

Both endergonic and exergonic responses require a modest quantity of energy to conquer an enactment boundary. Therefore option (c) is an incorrect answer.

Correct Answer

The statement endergonic reactions takes place slowly and exergonic reactions take place quickly is false. Therefore option (d) is the correct answer.