Question

drag and drop each free energy graph to classify it as an exergonic or an endergonic reaction.
exergonic reaction endergonic reaction
free energy
reaction progress
free energy
reaction progress
free energy
reaction progress
free energy
reaction progress

Explanation:

An exergonic reaction releases energy, so the free energy of the products is lower than that of the reactants. An endergonic reaction absorbs energy, so the free energy of the products is higher than that of the reactants. Looking at the graphs:

• The first graph (left - most among the three below) has a decrease in free energy from reactants to products, so it is exergonic.
• The second graph (middle) has a decrease in free energy from reactants to products, so it is exergonic.
• The third graph (right - most) has an increase in free energy from reactants to products, so it is endergonic.

Answer:

Exergonic reaction: First and second graph (left - most and middle among the three below). Endergonic reaction: Third graph (right - most among the three below).