Abstract

The new simple extended corresponding-states principle to accurately correlate and predict the transport properties in dilute gas for chemically diverse set of compounds from the Chapman–Enskog theory is presented. The extended corresponding-states principle is further testified to be successful in reflecting the physical behavior of substances whose force fields deviate from the spherical molecule argon. Satisfactory results are obtained for simple, nonpolar, polar, hydro-bonding and associating compounds. Once substance-dependent parameters such as the critical parameters and acentric factor are known, the transport properties may be reliably predicted. The paper presented here provides a general method to describe and predict the transport properties of all classes of molecules in the dilute gas in contrast to the existing theoretically-based models.

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