An accurate understanding of formation and gas properties is crucial to the efficient
development of shale gas resources. As one kind of unconventional energy, shale gas …

In a preceding project, functional forms for “short” Helmholtz energy equations of state for
typical nonpolar and weakly polar fluids and for typical polar fluids were developed using …

An equation of state is presented for the thermodynamic properties of propane that is valid
for temperatures from the triple point temperature (85.525 K) to 650 K and for pressures up …

Helium is the only substance that has been observed on macroscopic scale to form the
fourth state of matter, the superfluid state. However, until recently superfluid helium had not …

A recent argon–argon interatomic potential energy curve determined from quantum-
mechanical ab initio calculations and described with an analytical representation [B. Jäger …

1.1. Background Sulfur hexafluoride is a nonpolar substance which is very stable in electric
fields. Hence, an important technical application is its use as an isolation gas in switching …

The zero-density viscosity 0, T^\rm gas of hydrogen, methane, and argon was determined in
the temperature range from 200 to 400 K, with standard uncertainties of 0.084% for …

A new reference-quality correlation for the viscosity of methanol is presented that is valid
over the entire fluid region, including vapor, liquid, and metastable phases. To describe the …

Using residual entropy scaling approaches, transport properties, such as viscosity and
thermal conductivity, can be linked to a thermodynamic property, ie, residual entropy. It has …

The speed of sound is a key thermodynamic property widely used across various energy
utilization applications. However, current universal models struggle to accurately predict the …