Excess molar volumes of mixtures of heptane + 1-propanol, 1-pentanol, or 1-heptanol were determined from density measurements at 278.15, 288.15, 298.15, and 308.15 K. From these results (delta V-E/delta T)(p) and (delta H-E/delta P)(T) at 298.15 K were calculated. The results were compared with the values calculated using the Nitta-Chao theory of liquid mixtures.