Why is the reaction with a negative Gibbs free energy always spontaneous?
a) more energy is needed to form the products than the reactants, so energy must be added
b) less energy is needed to form the products than the amount of energy present in the reactants
c) a negative deltaG corresponds to a negative deltaE, which is always spontaneous
d) a negative Gibbs free energy, deltaG, always corresponds with a postive entropy, deltaS.
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