Question

When a nonpolar liquid displays a convex meniscus, which of the following explains this behavior? A. It has a low surface tension, and therefore clings to the glass. B. The cohesive forces are stronger than the adhesive forces to the glass. C. The adhesive forces to the glass are stronger than the cohesive forces. D. The liquid's viscosity is low. E. None of these.

Answer 1

The convex meniscus displayed by a nonpolar liquid is explained by the cohesive forces being stronger than the adhesive forces to the glass.

Step-by-step explanation:

The convex meniscus displayed by a nonpolar liquid is explained by option B: The cohesive forces are stronger than the adhesive forces to the glass.

When a nonpolar liquid comes into contact with a surface, such as glass, the adhesive forces between the liquid and the surface are weak compared to the cohesive forces within the liquid. In this case, the cohesive forces draw the liquid into a drop, causing it to form a convex meniscus. This can be seen with nonpolar liquids like mercury, which does not wet glass and forms a convex meniscus when confined in a tube.

Answer 2

The cohesive forces are stronger than the adhesive forces to the glass

Step-by-step explanation:

trsuttt