THERMODYNAMICS OF THE CELL - ICAL-BAR-MECL(M)VERTICAL-BAR-AGCL-VERTICAL-BAR-AG) (ME=NA,K,CS) IN (ETHANOL PLUS WATER) SOLVENT MIXTURES

The electromotive force E of the cell: {MexHg(1-x)\MeCl(m)\AgCl\Ag} (w here Me = Na, K or Cs), has been measured at the temperature 298.15 K as a function of the mole fraction x of the metal Me in amalgams and o f the molality m of the alkali chloride MeCl in (ethanol + water) solv ent mixtures containing up to 0.8 mass fraction of ethanol. Therefrom the respective standard electromotive forces E degrees have been deter mined, together with the activity coefficients gamma(+/-) of the relev ant MeCl electrolyte as a function of its molality. The E degrees decr ease with increasing ethanol content turns out to be the same within /-3 mV for the three Me-amalgam cells studied.