Mathematical Definition of Activity

Activity - lim ai = 1 t->t0 g(t) where g(t) is some function, like molar concentration or partial pressures ai is the implicid activity t is some variable of the reference function and t0 is the value of t at some reference state

Activity - lim ai = 1 t->t0 g(t) where g(t) is some function, like molar concentration or partial pressures ai is the implicid activity t is some variable of the reference function and t0 is the value of t at some reference state