. "ULTRASONIC STUDY AND THERMODYNAMIC PROPERTIES OF A BINARY MIXTURE OF METHANOL + ANILINE AND 1-PROPANOL + ANILINE ".

Ultrasonic waves are sound waves, which have frequency more than audible limit. The value of ultrasonic
velocity (?) with composition (c) in a binary mixture of Methanol + Aniline and 1-Propanol + Aniline shows
that ultrasonic velocity (?) increases progressively as composition of Methanol increases in the mixture. Adiabatic
compressibility (?a) of Methanol + Aniline show decrease wave like with increases of Methanol in the mixture
and this nature is exactly in reciprocate nature of velocity composition curve.
This curve is wave like changing in nature showing a molecular interaction between the Methanol and Aniline
mixture is weak interaction. This interaction between the molecules may be due to the functional groups of
Methanol and Aniline binary mixture.