Question

Define angle of contact?What is the angle of contact of a liquid that wets the surface

Answer 1

Answer:

If the contact angle between a liquid and a solid is <90°, the liquid will wet the surface and spread over it. If the contactangleis ≥90°, the liquid will stay on thesurface as a bead

Answer 2

Answer:

If the contact angle between a liquid and a solid is <90°, the liquid will wet the surface and spread over it. If the contactangleis ≥90°, the liquid will stay on thesurface as a bead

hope it helps :)