Intermolecular Forces of Attraction_II

Front

What is the relationship between intermolecular forces and vapor pressure?

Back

A substance with strong intermolecular forces will have a low vapor pressure compared to a substance with weaker intermolecular forces.

Front

What type of intermolecular force is primarily responsible for the high melting point of ice and boiling point of water?

Back

Hydrogen bonds between water molecules.

Front

What is capillary action?

Back

Capillary action is the ability of a liquid to flow in narrow spaces without the assistance of external forces, often due to adhesive and cohesive forces.

Front

What causes a liquid to form a concave meniscus in a narrow tube?

Back

A concave meniscus forms when adhesive forces between the liquid and the tube are stronger than the cohesive forces within the liquid.

Front

How does temperature affect the surface tension of a liquid?

Back

As the temperature of a liquid increases, its surface tension decreases.

Front

Define intermolecular forces of attraction.

Back

Intermolecular forces of attraction are the forces that mediate interaction between molecules, including forces such as hydrogen bonding, dipole-dipole interactions, and London dispersion forces.

Front

What is the effect of strong intermolecular forces on the boiling point of a substance?

Back

Substances with strong intermolecular forces typically have higher boiling points.

Front

What are the three main types of intermolecular forces?

Back

The three main types of intermolecular forces are hydrogen bonds, dipole-dipole interactions, and London dispersion forces.

Front

Explain the concept of cohesive forces in liquids.

Back

Cohesive forces are the intermolecular forces that hold molecules of the same substance together, contributing to surface tension.

Front

Explain the concept of adhesive forces in liquids.

Back

Adhesive forces are the intermolecular forces that attract molecules of different substances to each other, such as water molecules to the walls of a glass tube.