Excess enthalpies of mixing and excess heat capacities of binary mixtures of formic acid and pyridine at 30.degree.C

Molar excess enthalpies of mixing (H E ) and molar excess heat capacities at constant pressure (C p R ) of the binary mixtures of pyridine (PY) and formic acid (FA) at different compositiosn were measured at 30 o C using a modified Arnett-type solution calorimeter. Data indicate solvation of the pyridinium complex at higher formic acid content mixtures