Which of the following conditions will lead to a positive ΔG?

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Question: Which of the following conditions will lead to a positive ΔG?

Options:

Correct Answer: Low temperature and high enthalpy.

Solution:

A positive ΔG can occur at low temperatures when the enthalpy is high, making the reaction non-spontaneous.

Which of the following conditions will lead to a positive ΔG?

Which of the following conditions will lead to a positive ΔG?

Step 1: Understand what ΔG means. ΔG is the change in free energy of a reaction.
Step 2: Know that a positive ΔG means the reaction is non-spontaneous, meaning it won't happen on its own.
Step 3: Learn about enthalpy (ΔH). High enthalpy means the reaction requires a lot of energy.
Step 4: Recognize that at low temperatures, the effect of enthalpy can dominate over entropy (ΔS).
Step 5: Conclude that if the enthalpy is high and the temperature is low, ΔG can be positive.

No concepts available.