A liquid does not wet the solid surface if the angle of contact is

Question

A liquid does not wet the solid surface if the angle of contact is (A) Zero (B) equal to 45° (C) equal to 90° (D) greater than 90°

Tardigrade Admin · Accepted Answer

A liquid does not wet the solid surface if the angle of contact is obtuse ie, greater than 90°. In this case cohesive forces will be greater than adhesive forces and so, the liquid does not wet the surface of solid.

Q. A liquid does not wet the solid surface if the angle of contact is

Zero

equal to $4 5^{\circ}$

equal to $9 0^{\circ}$

greater than $9 0^{\circ}$

A liquid does not wet the solid surface if the angle of contact is obtuse ie, greater than $9 0^{\circ}$ . In this case cohesive forces will be greater than adhesive forces and so, the liquid does not wet the surface of solid.

Q. A liquid does not wet the solid surface if the angle of contact is

Zero

equal to 45∘

equal to 90∘

greater than 90∘

A liquid does not wet the solid surface if the angle of contact is obtuse ie, greater than 90∘. In this case cohesive forces will be greater than adhesive forces and so, the liquid does not wet the surface of solid.

equal to $4 5^{\circ}$

equal to $9 0^{\circ}$

greater than $9 0^{\circ}$

A liquid does not wet the solid surface if the angle of contact is obtuse ie, greater than $9 0^{\circ}$ . In this case cohesive forces will be greater than adhesive forces and so, the liquid does not wet the surface of solid.