Problem 13 - Olympiad

The standard Gibbs free energy change (ΔG°) for a reaction is -20 kJ/mol. What can be concluded about the spontaneity of the reaction?

A. The reaction is spontaneousB. The reaction is non-spontaneousC. The reaction is at equilibriumD. The reaction's spontaneity cannot be determined

Correct: A

A negative standard Gibbs free energy change (ΔG° < 0) indicates that the reaction is spontaneous under standard conditions. This means that the reaction will proceed on its own without any external input of energy.