Abstract
Effect of size and solute concentration on the surface tension of succinic acid (SA)-water aerosol droplets smaller than 10 nm which cannot be obtained experimentally is studied by molecular dynamics (MD) simulations. On this basis, a comprehensive formula for surface tension is proposed and applied to the hygroscopicity model, and predictions are compared with three traditional models. Results show that the surface tension is positively correlated with the droplet size within a certain size range which is shortened with the increasing SA concentration, and the stable surface tension values after a sufficiently large size is validated experimentally. Additionally, the surface tension decreases linearly as the SA concentration increases, and the absolute slope is positively correlated with the size. Moreover, using surface tension formula from this study results in an improvement of the hygroscopicity prediction. The surface tension is found to be the main reason for the difference among various models.
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.
