Abstract
Electron mobilities were measured in supercritical (SC) Xe and Kr as functions of pressure and temperature. Ion mobilities, reaction rates of electrons with C 6F 6, O 2 and pyrazine were also measured in SC Xe. Electron mobility is strongly field-dependent and the low-field mobility μ e exhibits a deep minimum at a density just below the critical density. A deformation potential model of the acoustic phonon scattering type can reproduce μ e change in SC Xe and Kr quantitatively. From positive ion mobility values, a hydrodynamic compressible continuum model indicates that the cluster radius goes to a maximum, 1 nm, at 291 K at the pressure of the isothermal compressibility, χ T , peak. The rate constant for the reaction C 6F 6+e −→C 6F 6 – sharply increases up to nearly 10 15 molal s −1 in this pressure region. Pyrazine was found to form neutral clusters in SC Xe prior to electron attachment. These and other data are compared with the observation made in SC ethane.
Sign-in/Register to access full text options 
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.
