|klȯzēəs.ˈklapāˌrōn-, -ˌrän- noun
Usage: usually capitalized both Cs
Etymology: after Rudolf J. E. Clausius died 1888 German mathematical physicist and B. P. E. Clapeyron died 1864 French engineer
: the Clapeyron equation as modified for liquid-vapor phases by assuming that the vapor is an ideal gas and that the volume of the liquid phase is negligible in comparison with the volume of the vapor