Question

c) To which point does the capillary rise of a liquid happen against the gravitational force?
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Answer 1

Answer:

Answer:When the adhesive force is greater than cohesive force, the capillary rise of a liquid happen against the gravitational force.

Answer 2

The capillary rise of a liquid happens against the gravitational force till the steady state between the forces of adhesion and forces of cohesion is achieved.

Explanation:

• The capillary rise (or fall) of a liquid happens due to the cohesive and adhesive forces

• Cohesion is the attractive forces between similar molecules or atoms for example the attractive forces between the molecules of liquid

• Adhesion is the attractive forces between dissimilar molecules or atoms like the attractive forces between the molecules of liquid and glass surface

• When adhesion is greater than the cohesion and gravitational force then the liquid clings to the wall of the capillary tube, the cohesion tries to reduce the surface tension

• Thus, the liquid rises inside a capillary tube till the steady state between the forces of adhesion and cohesion is achieved

Hope this answer is helpful.