Hey,
As the title reads I would like to know what the term surface energy and work of adhesion means, for JKR 2 it is said that these quantities give us an estimate of how cohesive a particle is. What I need is the fundamentals of the concept of surface energy.
It would be great if you could point to resources like the one attached below:
https://royalsocietypublishing.org/doi/epdf/10.1098/rspa.1971.0141
Regards,
Kiran