10.2 Liquids

A liquid can be described as a form of matter that

• has a definite volume.

• has a definite shape.

• cannot diffuse.

• has low density.

Liquids are more ordered than gases because liquids have

• weaker intermolecular forces and lower mobility of the particles.

• weaker intermolecular forces and greater mobility of the particles.

• stronger intermolecular forces and lower mobility of the particles.

• stronger intermolecular forces and greater mobility of the particles.

According to the kinetic-molecular theory, particles in a liquid

• are bound together in fixed positions.

• are packed together in an orderly arrangement.

• move around randomly and constantly.

• vibrate only.

A mixture of alcohol, water, oil, and glycerin is poured into a graduated cylinder. The liquids separate to form layers from top to bottom: alcohol, oil, water, and glycerin. Based on this observation, which liquid is the most dense?

• alcohol

• oil

• water

• glycerin

Which of the following is not an example of an intermolecular force?

• hydrogen bonding

• London dispersion forces

• gravitational forces

• dipole-dipole interactions

Diffusion is much slower in liquids than in gases because

• liquids exist at lower temperatures.

• liquid particles are closer together.

• liquid particles weigh more.

• liquids have surface tension

Water forms roughly spherical drops because of

• viscosity.

• capillary action.

• surface tension.

• fluidity.

Surface tension does not account for which of the following phenomena?

• ability to diffuse

• meniscus formation

• capillary action

• decreasing surface area

A liquid becomes a gas during

• evaporation.

• condensation.

• sublimation.

• deposition.

If energy as heat is removed, most liquids will eventually

• freeze.

• burn.

• evaporate.

• diffuse.