In a spontaneous change, which of the following is true?

entropy always decreases.

temperature always increases.

gibbs free energy always decreases.

gibbs free energy always increases.

Gibbs free energy always decreases.

Explanation:

Entropy always decreases. False. For a spontaneous reaction entropy always increases.

Temperature always increases. False. A reaction may be spontaneous at high or low temperatures.

Gibbs free energy always decreases. True. For a spontaneous reaction Gibb’s free energy always decreases. ΔG is < 0. Gibb's free energy equation is:

ΔG = ΔH -TΔS

Gibbs free energy always increases. False.

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