Equation of state and thermodynamic properties of normal hydrogen in the temperature interval $T = 200$–$700$ degree k and pressure range $p = 10$–$1000$ MPa

An equation of state is proposed for molecular hydrogen in the temperature interval $200$–$700$ degree K and pressure range from $10$ to $1000$ MPa, constructed using the property of the approximate linearity of the isobars of the molar volume of the gas far from its critical point. Calculated values of the enthalpy, entropy and chemical potential of hydrogen in this range are also given.