The initial thermoelectric power (TEP) has been determined for hydrogen electrodes in aqueous normalHCl solutions as a function of molality from 0.002 to 0.6 mol/kg and as a function of temperature for a 10° gradient at mean temperatures of 20°, 25°, and 30°C. For each mean temperature the TEP's are analyzed by fitting the data to an equation with three constants. At rounded molalities, the TEP's that were obtained from the 25° equation have been combined with known values for the heat of transport of normalHCl in order to determine a single‐ion property, the transported entropy of the hydrogen ion. By extrapolation the standard value of this property has been determined as 5.42±0.16 normaleu , which is in agreement with literature values.

Die Anfangsthermokraft von Wasserstoffelektroden in wäßrigen HCl‐Lösungen wurden als Funktion der Lösungsmolalität und der Temperatur bestimmt.