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# Help with Gibbs' Free Energy!

There's an equation that states ΔG = - RT ln K, where ΔG is the Gibbs' free energy at standard conditions, R is the universal gas constant, T is the temperature, and K is the equilibrium constant.

Is K = Kc (in terms of concentrations) or K = Kp (in terms of partial pressures)?

According to this equation it seems to be dimensionless!

Note by Ameya Daigavane
1 year, 10 months ago

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Both Kp nd Kc I guess, because any sort of equilibrium is considered in the equilibrium, it's just a particular value of the reaction quotient attained at equilibrium. · 1 year, 4 months ago

It is $$K_{c}$$ i.e. in terms of concentration. · 1 year, 5 months ago