When the adhesive forces between a liquid and the walls of a capillary tube are

Question

When the adhesive forces between a liquid and the walls of a capillary tube are greater than the cohesive forces within the liquid:

a) The liquid level in a capillary tube will rise above the surrounding liquid and the surface in the capillary tube will have a convex meniscus

b) The liquid level in a capillary tube will rise above the surrounding liquid and the surface in the capillary tube will have a concave meniscus

c) The liquid level in a capillary tube will drop below the surrounding liquid and the surface in the capillary tube will have a convex meniscus

d) The liquid level in a capillary tube will drop below the surrounding liquid and the surface in the capillary tube will have a concave meniscus

e) None of these choices is correct

Explanation / Answer

b) The liquid level in a capillary tube will rise above the surrounding liquid and the surface in the capillary tube will have a concave meniscus

is the correect answer as

Adhesive forces are always directed outwards towards the walls of the container.

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