AP Chemistrymediummcq1 pt
For a reaction to be spontaneous, which must be true?
A.ΔH must be negative
B.ΔS must be positive
C.ΔG must be negative
D.ΔG must be positive
Explanation
Core Concept
A reaction is spontaneous when the Gibbs free energy change (ΔG) is negative. This can occur through various combinations of ΔH and ΔS, as determined by ΔG = ΔH - TΔS.
Correct Answer
CΔG must be negative
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