In this case equality (1) is attained only at ~[i/.ti --= 0 (C iS the vector of concentrations', T is the temperature and /ai(c ~ T) is the potential of the i-th substance). For our purposes it is more convenient to consider~ a potential differing from chemical ' ones by the RT factor rather than chemical potentials themselves: The former were designated /1/ as pseudochemical potentials.
261