Excess molar enthalpies h(E) of the binary systems acetone + water, cyclohexane, methanol, 1-propanol, 2-propanol, 1-butanol and l-pentanol were measured at temperatures of 283.15, 298.15, 323.15, 343.15 and 363.15 K and at a pressure of 0.4 MPa. An LKB flow microcalorimeter was used. The experimental h(E) values were correlated with a modified Redlich-Kister equation.