For which of the two pairs,the angle of conta | vedclass

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(B) The angle of contact depends on the nature of the liquid and the solid surface in contact.Pure water and glass,as well as alcohol and glass,are bo

Vedclass · Accepted Answer

Pure water and glass; glass and alcohol

Vedclass · Answer

(B) The angle of contact depends on the nature of the liquid and the solid surface in contact.Pure water and glass,as well as alcohol and glass,are both pairs where the liquid wets the solid surface.In both cases,the adhesive force between the liquid and solid molecules is greater than the cohesive force between the liquid molecules.Consequently,both pairs exhibit an acute angle of contact,making them the correct choice.

For which of the two pairs,the angle of contact is the same?

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