Question
Fri December 28, 2012 By:

WHAT IS ANGLE OF CONTACT?

Expert Reply
Fri December 28, 2012
Angle of contact exists between the liquid and solid in contact because of force of attractions between the solid and the liquid, which arises because of their molecular interactions. For pure water molecules are strongly attracted to the solid molecules then the water drop spread out completely on the solid surface, corresponding to a contact angle of 0°
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