The velocity of sound was measured in liquid ethane, under saturated vapor, in the normal liquid range by a resonance technique.With the use of existing velocity data for argon, nitrogen, and oxygen, a modified form of the corresponding-states principle was applied to the elliptical molecules, oxygen, nitrogen, and ethane. Good correspondence was found for reduced temperatures less than one (T* < 1).
Extension of the Law of Corresponding States to Rare-Gas Solids