Abstract
Abstract The Fowler–Guggenheim–McQuarrie analysis of the Debye–Hückel theory shows that electrostatic Helmholtz and Gibbs free energies (Fel and Gel, respectively) are not equal. The difference term (Fel − Gel)/V (V: system volume) is the osmotic pressure pel. The DLVO theory is based on the assumption that Fel = Gel, suggesting that this theory can be justified only for small pel, namely for weakly charged systems. The experiments show that the DLVO theory provides seemingly satisfactory pictures for weakly charged colloidal systems but not for strongly interacting ones. The widely accepted view that the mean-field approach should predict only repulsion is not justified. The intrinsic reason why the DLVO theory has provided only repulsion seems to be due to the assumption Fel = Gel.
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.
