States of Matter MCQ Questions and Answers for Practice

1. A real gas

1. consists of particles that do not occupy space.
2. cannot be condensed.
3. cannot be produced in scientific laboratories.
4. does not obey all the assumptions of the kinetic-molecular theory.

2. A solid forms when the average energy of a substances particles

1. decreases.
2. decreases then increases.
3. creates a random arrangement.
4. increases.

3. According to the kinetic-molecular theory, how does a gas expand?

1. Collisions between particles become elastic.
2. Its temperature rises.
3. Its particles move greater distances.
4. Its particles become larger.

4. According to the kinetic-molecular theory, particles of an ideal gas

1. repel each other and collide.
2. neither attract nor repel each other but collide.
3. neither attract nor repel each other and do not collide.
4. attract each other but do not collide.

5. According to the kinetic-molecular theory, particles of matter

1. have different shapes.
2. have different colors.
3. are always fluid.
4. are in constant motion.

6. According to the kinetic-molecular theory, particles of matter are in motion in

1. gases and liquids only.
2. solids, liquids, and gases.
3. solids only.
4. gases only.

7. According to the kinetic-molecular theory, which substances are made of particles?

1. liquids only
2. all matter
3. all matter except solids
4. gases only

8. An ideal gas is a hypothetical gas

1. that conforms to all of the assumptions of the kinetic theory.
2. whose particles have zero mass.
3. made of motionless particles.
4. not made of particles.

9. Any sample of matter has mass and takes up space. The main reason for this is because:

1. Matter can be a gas
2. Matter is made up of tiny particles that have mass and take up space
3. The Earth is made of matter
4. All matter is heavy

10. At pressures greater than 1 atm, water will boil at

1. a temperature lower than 100 degree Celcius.
2. 100 degree Celcius.
3. 4 degree Celcius.
4. a temperature higher than 100 degree Celcius.

11. By which process do gases take the shape of their container?

1. expansion
2. adhesion
3. diffusion
4. evaporation

12. During the process of freezing, a liquid

1. loses potential energy.
2. gains potential energy.
3. gains kinetic energy.
4. loses kinetic energy.

13. Food coloring spreads out faster in hot water than in cold water. This is mainly because:

1. The molecules in hot water are larger
2. The food coloring molecules are small
3. Hot water is less dense
4. The water molecules in hot water move more quickly

14. If the rate of evaporation from the surface of a liquid exceeds the rate of condensation,

1. the liquid is boiling.
2. energy as heat is no longer available.
3. the concentration of the vapor is increasing.
4. the system is in equilibrium.

15. If you put food coloring in room temperature water, the coloring spreads throughout the water. The water causes the color to spread mainly because:

1. Water molecules are in motion
2. Water is more dense than food coloring
3. Food coloring molecules are small
4. Water molecules are warm