Abstract

The effects of dimensional incompatibility and of potential barriers for surface diffusion on the phase transitions in a monolayer are discussed in terms of the partially mobile adsorption layer model presented in a previous publication. It is pointed out that the formation of a two-dimensional solid phase in registry with the adsorbent can be either discontinuous (first order) or continuous depending on the properties of the adsorption system. In particular, the first-order transition from the liquid to the solid phase can occur only when the system exhibits small dimensional incompatibility. The changes in various thermodynamic functions for the monolayer ( e.g. the isosteric heat of adsorption, the differential entropy and the heat capacity) due to phase transitions are discussed.

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 call

Disclaimer: 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.