Angles between Adhesive and Adherent is Zero degree, it indicates_______________?
Correct answer: C. Complete wetting of surfaces
- A. Adherent and Adhesive molecules are tangent to each other
- B. Rough surfaces between Adhesive & Adherent
- C. Complete wetting of surfaces
- D. Irregularities present between Adherent surfaces
Explanation
A contact angle of zero indicates complete wetting, because the adhesive spreads fully over the adherent surface. A high contact angle indicates poor wetting and weak potential adhesion.
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