A thermodynamically unfavorable reaction can become favorable when coupled to a highly reaction. A thermodynamically unfavorable reaction can become favorable when coupled to a highly reaction. Ionic Exergonic Neutral Endergonic

Ionic Exergonic

Explanation:

Exergonic reactions have negative Gibbs free energy and hence are spontaneous.

Endergonic reactions have negative Gibbs free energy and are non-spontaneous and low temperature.

Endergonic reactions require external supply of energy. But such reactions can be made spontaneous or favorable by coupling with exergonic reaction via a common intermediate.

Therefore, the correct answer is Ionic Exergonic.

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