For a spontaneous process, the change in Gibbs free energy (ΔG) is related to entropy (ΔS) by which of the following equations?

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Q: For a spontaneous process, the change in Gibbs free energy (ΔG) is related to entropy (ΔS) by which of the following equations?

Solution: The correct relationship is ΔG = ΔH - TΔS, where ΔG must be negative for a spontaneous process.

Steps: 5

Step 1: Understand that Gibbs free energy (ΔG) is a measure of the energy available to do work in a system.
Step 2: Know that for a process to be spontaneous, it must occur without needing to be driven by an external force.
Step 3: Recognize that the change in Gibbs free energy (ΔG) is related to the change in enthalpy (ΔH) and the change in entropy (ΔS).
Step 4: Learn the equation that relates these quantities: ΔG = ΔH - TΔS, where T is the temperature in Kelvin.
Step 5: Remember that for a process to be spontaneous, ΔG must be negative (ΔG < 0).