If a reaction has a ΔG of +5 kJ/mol, what can be inferred?

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Question: If a reaction has a ΔG of +5 kJ/mol, what can be inferred?

Options:

Correct Answer: The reaction is non-spontaneous

Solution:

A ΔG of +5 kJ/mol indicates that the reaction is non-spontaneous.

If a reaction has a ΔG of +5 kJ/mol, what can be inferred?

If a reaction has a ΔG of +5 kJ/mol, what can be inferred?

Step 1: Understand what ΔG means. ΔG stands for Gibbs free energy change, which tells us about the energy of a reaction.
Step 2: Know the significance of the sign of ΔG. A positive ΔG value means that the reaction requires energy to occur.
Step 3: Recognize that a reaction with a positive ΔG is non-spontaneous. This means it will not happen on its own without added energy.
Step 4: In this case, since ΔG is +5 kJ/mol, it confirms that the reaction is non-spontaneous.

Gibbs Free Energy (ΔG) – ΔG indicates the spontaneity of a reaction; a positive value means the reaction is non-spontaneous under standard conditions.