A reaction with a negative change in free energy is described as:
AEndergonic
BIsothermal
CExergonic
DEndothermic
Answer & Solution
Correct answer: C. Exergonic
1. The sign of the free energy change tells you which way a reaction runs on its own.
2. If energy is released during a chemical reaction, the resulting value is a negative number.
3. Reactions that have a negative free energy change and consequently release free energy are called exergonic reactions.
4. These are also referred to as spontaneous reactions, because they can occur without energy being added.
_Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 6 'Metabolism', sections 6.1-6.5_
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