Spontaneous

[Drew Myers 4G]

Can someone clarify how to prove when a reaction is spontaneous using Gibbs Free Energy?

[805383532]

A reaction is spontaneous when delta G is less than 0.

[KHowe_1D]

A reaction is spontaneous where deltaG is negative. When deltaG is positive the reaction is non spontaneous.

[Kate Osborne 1H]

A reaction is spontaneous when delta G is negative. for this to happen either delta H has to be negative, delta S has to be positive, or both are true. these factors creative spontaneity by driving the reaction either by enthalpy or entropy.

[rabiasumar2E]

A reaction is spontaneous when delta G is negative!

[sarahartzell1A]

When delta G is negative!

[JonathanS 1H]

If you use the G = H - TS, with a - H and + s, you will have a spontaneous reaction. If you have a +H and -S, the reaction will be non-spontaneous. If both are positive, the reaction will be spontaneous if TS is greater than H. If both are negative, the reaction will be spontaneous if H is greater than TS.

[Hannah Pham]

A spontaneous reaction has a delta G value that is negative (G<0)

[Noe BM 1J]

When delta G is negative, it's spontaneous. When delta G is positive.

[TimVintsDis4L]

When Delta G is negative, the reaction is exothermic. This means that it releases heat and does not require an input of energy; hence, it is spontaneous. An exothermic reaction indicates that an input of energy is required. This makes it a non-spontaneous reaction as it needs something else (not spontaneous) to make it do work.

[BCaballero_4F]

If delta G is negative then it is spontaneous, and if it is positive then it is not spontaneous.

[rohun2H]

If delta G is negative, the reaction is considered spontaneous (favorable).

[Madelyn Romberg 1H]

If gibbs free energy is less than zero, it is spontaneous. There is a chart in the book to correlate the two parts of gibbs free, the enthalpy and entropy part of the equation.

[Jessica Katzman 4F]

If delta G (the measure of Gibb's free energy) is positive, the reaction is not spontaneous. If it is negative, the reaction is spontaneous and therefore favorable.