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G (Gibb's free energy) for every solution is said to be less than 0. but isn't it false to say that as in the non ideal solution with positive deviation the gibbs free energy should increase?
It is said that Gibbs energy is negative only for the overall reaction to proceed. If Gibbs energy is positive, the reaction is not feasible i.e it cannot happen in given conditions, so we do not talk about it. Due to positive deviation of a non ideal solution, the Gibbs energy might increase a little bit but it will still remain negative.
Dear student Ideal solution are made by spontaneous process so in spontaneous process del G is less than 0.In non ideal solution spontinityy decreases so del G increases.
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