Science Constants   Name Enthalpy of vaporisation of water     Symbol -     Value 1.018 636 V at 20°C     Category Material properties: cells     Comments   The Weston standard cell has a positive electrode of mercury, a negative electrode of cadmium, and the electrolyte is saturated cadmium sulfate solution.    This EMF, which is reliably reproducible, is used for calibrating voltmeters.     References McGraw-Hill Dictionary of Physics and Mathematics , McGraw-Hill, 1978 The Dent Dictionary of Measurement , M Darton, J Clark, Dent, 1994

Developed By Domex e-Data Pvt., Ltd.,