When a narrow diameter glass tube is inserted into a body of water,water rises in the tube and its surface inside is concave upwards.Which statement,concerning the strength of the intermolecular forces between glass and water molecules compared to those between water molecules,is accurate?
A)The forces of attraction between the glass and water are weaker than those in water.
B)The forces of attraction between the glass and water are stronger than those in water.
C)The forces of attraction between the glass and water are the same as those in water.
D)Intermolecular forces are irrelevant to this situation.

Question

Quizplus · Accepted Answer

The concave meniscus formed in the glass tube indicates that the attractive forces between the glass and water molecules are stronger than the cohesive forces between water molecules alone, resulting in water being drawn up into the tube. Therefore, the answer is (B) the forces of attraction between the glass and water are stronger than those in water.

When a Narrow Diameter Glass Tube Is Inserted into a Body