Gibb's Free energy

[marcus lin 1E]

When is deltaG negative and positive? What's the significance?

[Sean Reyes 1J]

When delta G is negative, this signifies that a reaction will proceed spontaneously. If delta G is postive, this means that the reverse reaction will be spontaneous and the forward reaction will be non spontaneous. Delta G is guaranteed to be negative when delta H is negative and delta S is positive. If it’s the reverse (delta S is negative and delta H is positive), then the value of delta G will be positive. When the signs of delta H and delta S are the same, then the sign of delta G will be dependent on the temperature

[Sarah Zhao 4C]

Use the Gibb's Free Energy equation to determine spontaneity. While is is usually true that delta G follows the sign for delta H, please do not use this as a rule of thumb.

[almaochoa2D]

Delta G is spontaneity. From what I understand is if delta G is spontaneous it is also endothermic and if delta G is negative it is not spontaneous and it is exothermic.

[505211599]

delta g represents the spontaneity, so if it is negative it will be spontaneous and if positive it will be non-spontaneous.