Asked by Robin Sparks on Jul 17, 2024
Verified
Consider the following two chemical equations:
A. glucose + fructose → sucrose + H2O, Δ G = +27 kJ/mole (or +6.5 kcal/mole)
B. glucose + fructose + ATP → sucrose + ADP + Pi, Δ G = −5 kJ/mole (or −1.2 kcal/mole)
The overall free energy change in the chemical equations (A) and (B) above is accomplished by
A) a decrease in activation energy.
B) combining two endergonic reactions.
C) combining an endergonic and an exergonic reaction.
D) combining two exergonic reactions.
E) measuring the reaction rate.
Free Energy Change
A measure in thermodynamics indicating the amount of energy in a system that is available for work during a chemical reaction.
Endergonic Reactions
Chemical reactions that absorb energy from their surroundings, typically requiring an input of energy to proceed.
Exergonic Reaction
A chemical reaction that releases energy through the process of work, typically characterized by a negative Gibbs free energy.
- Elucidate the principle of Gibbs free energy and its significance in the context of chemical reactions.
Verified Answer
Learning Objectives
- Elucidate the principle of Gibbs free energy and its significance in the context of chemical reactions.
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