Question

for the liquid which wets the solid surface the angle of contact is​

Answer 1

Answer:

The wetting tendency is larger, the smaller the contact angle or the surface tension is. A wetting liquid is a liquid that forms a contact angle with the solid which is smaller than 90°, whereas, a nonwetting liquid creates a contact angle between 90 and 180° with the solid.

Explanation:

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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 contact angle is ≥90°, the liquid will stay on the surface as a bead.

Explanation:

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