The excess molar enthalpy of {xH2O + (1−x)CnH2n+2}(g) for n = 5, 6, 7, and 8

A cubic equation of state for mixtures containing steam

“…2(e) and (f). We expect our equations to work well at 5)- (7). temperatures above 698.2 K, and above this temperature it is likely that they will give good thermodynamic properties of mixtures at pressures up to 20 MPa.…”

Second virial cross coefficients for (ammonia + water) derived from gas phase excess enthalpy measurements

“…It was previously found (25) that the best combining rule for the calculation of ξ for mixtures of n-alkanes and (water + an alkane) (26) is:…”

Excess molar enthalpies of {xH2O +(1 –x)C5H12}(g) up to 698.2 K and 14.0 MPa

“…We will compare our results with eqn (10) in such a way as to show the effect of making different approximations in the third virial coefficient mixture terms. To obtain the best values of the residual enthalpy of steam and n-pentane we will calculate the q5' and y terms for both these fluids and include them in eqn (10).…”

“…2(b) we have repeated the calculation of the curves shown in fig. 2(a) putting 1,,,, for steam into eqn (10) and ( 13). Because of the x: term in eqn (1 3) the contribution of 1,,,, to the enthalpy of the mixture is small, and reduces HZ by only ca.…”