Scelta multipla
The standard free energy change (ΔG°) measures which of the following?
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3. Energy
Gibbs Free Energy and Equilibrium
Scelta multipla
True or False:In an exergonic reaction, ΔG will be positive because energy is being released.
A
True
B
False
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Understand the concept of Gibbs Free Energy (ΔG): In thermodynamics, ΔG represents the change in free energy of a system. It indicates whether a reaction is spontaneous or non-spontaneous.
Define exergonic reactions: Exergonic reactions are chemical reactions that release energy. These reactions are spontaneous, meaning they can occur without the input of additional energy.
Relate ΔG to exergonic reactions: For a reaction to be exergonic, the change in free energy (ΔG) must be negative. This indicates that the system is losing energy, which is released to the surroundings.
Analyze the statement: The statement claims that in an exergonic reaction, ΔG will be positive. However, since exergonic reactions release energy, ΔG should be negative, not positive.
Conclude the analysis: Based on the understanding that exergonic reactions have a negative ΔG, the statement is false. In an exergonic reaction, ΔG is negative because energy is being released.
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