Excess molar enthalpies HEmfor (propane + chloromethane) have been measured using a flow calorimeter at the temperatures (298.15, 323.15, and 348.15) K and pressures (5 and 15) MPa and at the temperature 363.15 K and pressures (5, 10, and 15) MPa. The comparison with earlier measurements reported in the literature at the temperatures (193.15, 203.25, 213.15, and 223.15) K indicates that the change of HEmwith temperature is small over a wide range of temperatures. © 1993 Academic Press Ltd.