Chapter 12 Chem Test review

Indicate whether the statement is true or false: The kinetic molecular theory describes the behavior of matter in terms of particles in motion.

• True

• False

Indicate whether the statement is true or false: An elastic collision is one where two colliding particles both lose some of their kinetic energy.

• True

• False

Indicate whether the statement is true or false: Gases tend to have lower densities than solids because gases have lower molar masses.

• True

• False

Indicate whether the statement is true or false: Forces that act between two molecules are referred to as intermolecular forces.

• True

• False

Indicate whether the statement is true or false: A substance does not change in temperature while it is undergoing a change in state.

• True

• False

Indicate whether the statement is true or false: Boiling occurs when the vapor pressure from a liquid is equal to the atmospheric pressure.

• True

• False

Indicate whether the statement is true or false: The kinetic-molecular theory assumes that the distance between the particles of a gas is so large that there are no significant attractive or repulsive forces.

• True

• False

Indicate whether the statement is true or false: If liquid A has more massive molecules than liquid B, liquid A has a higher viscosity.

• True

• False

Indicate whether the statement is true or false: The surface tension of water decreases when a detergent is added to it.

• True

• False

Indicate whether the statement is true or false: A molecule in the interior of a liquid is affected equally in all directions by intermolecular forces.

• True

• False