Practice Questions for BJU Chem 1 and 2 Assessment

The first postulate of the KMT is that all matter is made up of

• tiny particles

• molecules

• cells

• mass

According the KMT, the particles are in

• different states

• organized patterns

• constant motion

• various containers

According to the KMT, increasing the temperature of particles will

• give off energy

• increase motion

• decrease volume

• increase pressure

According to the KMT, the particles of the different states of matter differ in what two key aspects?

• volume and mass

• density and extention of interactions

• temperature and freedom of motion

• freedom of motion and extent of interactions

In a solid, what keeps each particle trapped in the same small volume and with the same surrounding particles.

• strong attractions between particles

• ionic bonds

• lack of particle motion

• low temperatures

What does increasing the temperature of a solid lead to?

• increased mass of particles

• decreased space between particles

• decreased velocity of particles

• increased velocity of particles

How does the particles in a liquid behave?

• Neatly organized without any movement.

• Move around trapped in a small volume and with the same surrounding particles.

• Move fast enough to break attractions and pushing other particles out of the way.

• Move freely in a straight line until they collide with another particle.

How doe the particles in a gas behave?

• Neatly organized without any movement.

• Move around trapped in a small volume and with the same surrounding particles.

• Move fast enough to break attractions and pushing other particles out of the way.

• Move freely in a straight line until they collide with another particle.

If the particles in a liquid are moving fast enough to complete break the attraction pulling it back towards other particles, what process is occuring?

• sublimation

• melting

• freezing

• evaporation

When particles in a gas collide, they change

• direction and velocity

• velocity and temperature

• direction and volume

• volume and temperature