Sound velocity for trichloroethylene + propan-1-ol, + butan-1-ol, + pentan-1-ol, + hexan-1-ol, + heptan-1-ol, and + octan-1-ol have been measured at 303.15 K. These results have been combined with our previous results for excess molar volumes converted to densities to obtain isentropic compressibilities, k(s). Deviations in the isentropic compressibility properties, Delta k(s), were evaluated using volume fraction weighing of the individual component properties to estimate ideal mixture behavior. The Delta k(a) values are negative over the whole range of volume fraction for all the mixtures and at the minimum decreases with an increase in chain length of the alcohol. For all systems, these results were satisfactorily correlated by the Redlich-Kister polynomial. The results are explained in terms of dissociation of the self-associated alkan-1-ol molecules and the formation of aggregates between unlike molecules through Cl ... H ... O bonding.