$p$, $\rho$, $T$, $x$-relations for water–hydrocarbon gaseous mixtures in a wide range of the parameters of state

Experimental data on $p$, $\rho$, $T$, $x$-Relations (gas phase) of the water–hydrocarbon binary systems ($\mathrm{CH}_4$–$\mathrm{C}_8\mathrm{H}_{18}$, $\mathrm{C}_6\mathrm{H}_6$, $\mathrm{C}_7\mathrm{H}_8$) are given in the subcritical and supercritical regions, including states close to the critical region, at temperatures from $523.15$ to $673.15$ K and pressures up to $63$ MPa, obtained by the piezometer method at constant volume. The special features of the thermodynamic behavior of mixtures of this class are determined.