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Spontaneous reactions are characterised by - SS1 Chemistry Energy Changes in Chemical Reactions Question

Spontaneous reactions are characterised by:

 

A

 A positive change in Gibbs free energy (ΔG).

 

B

A negative change in Gibbs free energy (ΔG).

 

C

A zero change in Gibbs free energy (ΔG).

 

D

An unpredictable change in Gibbs free energy (ΔG).

correct option: b
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