Abstract
A cryogenic flow calorimeter was used to measure excess molar enthalpies H E m for { x CO 2 + (1 − x )C 2 H 6 }(l) at the temperature (230.8±0.5) K and the pressure (1.57±0.19) MPa and { x CO 2 + (1 − x ) n -C 4 H 10 }(l) at (221.4±0.4) K and (0.91±0.06) MPa, and at (241.4±0.2) K and (1.83±0.14) MPa, as a function of x . Raising the pressure in the first mixture to 3.37 MPa and in the second to 4.36 MPa at the higher temperature had no effect on H E m , within experimental error. The dependence of H E m on x shows a slight asymmetry toward the CO 2 -rich side For the first mixture, the value of H E m ( x = 0.5) is (1626±6) J·mol −1 , almost 200 J·mol −1 larger than previously published results (Wallis, K. P; Clancy, P.; Zollweg, J. A.; Streett, W. B. J. Chem. Thermodynamics 1984, 16, 811) while for the second, H E m ( x = 0.5) is (1726±7) J·mol −1 and (1630±17) J·mol −1 at 221.4 K and 241.4 K, respectively.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
