Pressure-Enthalpy Diagram for Ethylene Oxide

Fundamental equation of state for ethylene oxide based on a hybrid dataset

“…Ideal isobaric heat capacity Chao et al (1986) 0.54 Dorofeeva (1992) 0.49 Guenthard and Heilbronner (1948) 0.65 Guenthard et al (1950) 0.37 Hurly (2002) 0.40 Kistiakowsky and Rice (1940) 0.18 Lange and Dean (1973) 0.12 Ramasamy and Srinivasacharya (1978) 1.25 Walters and Smith (1952) 0.36 Sundaram (1963) 0.04 Godnev and Morozov (1948) 0.27 Vvedenskii (1969) 0 Calado et al (1996) 1.23 Chao et al (1986) 0.13 Coles and Popper (1950) 1.23 0.31 Giauque and Gordon (1949) 0.16 0.07 Giles and Wilson (2006) 0.55 Hess and Tilton (1950) 0.74 Kistiakowsky and Rice (1940) 0.67 Lide (2005) 0.18 0.17 Maass and Boomer (1922) 0.97 0.70 McDonald et al (1959) 0.18 0.31 Walters and Smith (1952) 0.41 1.74 Mock and Smith (1950) 7.52 Gillespie et al (1985) 0.93 This work 22.80 1.77…”

Variation of Latent Heat with Temperature.

“…Sample deviations of the data points from this simple equation are shown in Figure 1. The average value of n for all 44 substances is 0.378. The data input was from tables of thermodynamic functions and raw experimental points.…”

Ethylene Oxides

“…Measurement of the enthalpy of ethylene oxide over a wide range of pressures has been conducted in at least two laboratories,3253 1166 and entropy calculations have been made from them results. The entropy of ethylene oxide vapor was likewise determined by Giauque and Gordon.635 Their experimental value of 57.38 cal./degree-mole after a suitable correction for deviation from ideality is not far from the value 57.56 calculated from theory.…”