The pure component vapour pressure of two organic liquids-acetone and acetonitrileby Antoine equations are given by \[ \ln P_{1}^{\text {Sat }}=14.54-\frac{2940}{T-36} \]

and

\[ \ln P_{2}^{\text {Sat }}=14.27-\frac{2945}{T-50} \]

where \(P_{1}^{\text {Sat }}\) and \(P_{2}^{\text {Sat }}\) are in \(\mathrm{KPa}\) and \(T\) in \(\mathrm{K}\).