Excess enthalpies and volumes for (carbon dioxide + ethane) atT= 291.6 K, close to the minimum in the critical locus

Excess molar enthalpies of (carbon dioxide + ethene) in the liquid and near-critical regions

“…The measurements on (carbon dioxide + ethane) reported previously (3)(4)(5) were compared with the Patel-Teja (16) equation of state which, although not exactly fitting any of the sets of measurements, reproduced all the main features of the H E m (x) curves. The mea- (17) that the Patel-Teja equation is a better fit to saturated liquid and vapour densities than many similar cubic equations of state.…”

“…(1) The calorimeter was tested by making excess enthalpy measurements on (carbon dioxide + toluene), and the results were found to be in good agreement with other work. (2) The calorimeter was then used to make extensive measurements (3)(4)(5) of H E m for {xCO 2 + (1 − x)C 2 H 6 } in the liquid, gas, two-phase, and near-critical regions. Similar measurements on {xCO 2 + (1 − x)C 2 H 4 } are now reported.…”

Near critical measurements of HmE andVmE for (ethane + sulphur hexafluoride)

“…The calorimeter was tested by making excess enthalpy measurements on {x CO 2 + (1 − x)C 6 H 5 CH 3 }, (1) and these were found to be in good agreement with other work. (2) The apparatus has been used to make extensive measurements of H E m and V E m of {x CO 2 + (1 − x)C 2 H 6 } in the liquid, twophase and critical regions (3)(4)(5) and similar measurements on {x CO 2 + (1 − x)C 2 H 4 } (6,7) and {x CO 2 + (1 − x)SF 6 } (8,9) have recently been reported. Some measurements on {x C 2 H 6 + (1 − x)SF 6 } have also been reported (10) at T = (250.15, 270.15, 290.15, 293.15 and 302.15) K and at P = (4.32 and 4.88) MPa.…”

Near critical measurements of HmEandVmE for { xCO2+ (1 −x)SF6} and measurements made over the pressure range 2.5 to 10.0 MPa at the temperature T= 301.95 K

“…The calorimeter was tested by making excess enthalpy measurements on the mixture {xCO 2 + (1 − x)C 6 H 5 CH 3 }, (1) and these were found to be in good agreement with other work. (2) The apparatus has been used to make extensive measurements of H E m and V E m of {xCO 2 + (1 − x)C 2 H 6 } in the liquid, two-phase, and critical regions (3)(4)(5) and similar measurements on {xCO 2 + (1 − x)C 2 H 4 } have recently been reported. (6,7) For the mixtures (carbon dioxide + ethane) and (carbon dioxide + ethene) the critical temperatures of the pure fluids are close together.…”