2022 ~ Gas Laws Unit Review

The kinetic model of matter states that

• atoms and molecules move in continuous and non-random motion.

• atoms and molecules move in continuous and random motion.

• the kinetic energies of atoms and molecules increase with increasing temperature.

• the pressure of atoms and molecules is due to the collision of these particles with the walls of the container they are in.

Using a microscope, Peter observes that some pollen grains suspended in water move in an irregular manner. This is due to the

• pollen grains colliding with one another.

• pollen grains repelling one another.

• bombardment of pollen grains by water molecules.

• bombardment of water molecules by pollen grains.

Choose the most appropriate phrase to complete the following statement.

As the temperature of a gas increases, the gas molecules

• move faster.

• expand in volume.

• increase in mass.

• increase in number.

Choose the most appropriate description for the relative forces of attraction between particles in a solid, a liquid and a gas.

• A

• B

• C

• D

Which of the following statements about a gas is/are correct?

1 Smaller gas particles move with higher speeds compared to larger gas particles.

2 The intermolecular forces between gas particles are negligible.

3 At higher temperatures, the volume of gas particles increases.

• 1 only

• 2 only

• 1 and 2 only

• 1, 2 and 3

Which of the following is NOT a part of the Kinetic Theory of Matter?

• All matter is made up of tiny particles.

• Particles are always moving in random paths

• Occasionally, particles stop moving.

• The type of movement of particles depends on the amount of energy.

What state of matter is shown in the image?

• Solid

• Liquid

• Gas

• Thermal Energy

When the temperature of matter decreases the particles ...

• speed up and move farther apart

• slow down and move farther apart

• speed up and move closer together

• slow down and move closer together

When thermal energy is added to a substance, the substance's particles move:

• More rapidly at an increased distance from each other.

• More slowly with a greater distance between each other.

• More rapidly with less distance between each other.

• More slowly with a reduced distance between each other.

When particles collide with each other they...

• stop completely still

• transfer kinetic energy

• lose all their energy

• become smaller