Particulate Nature of Matter

1. What results to different gasses having different rates of diffusion?

Gases have different densities

Denser gases have heavier particles while less dense gases have lighter particles.

A denser gas moves more slowly than a lighter one.

All of above

Question 1 of 24

2. Which statement is INCORRECT about particles in SOLID state of Matter?

Solid particles have a strong force of attraction between particles of the same kind

Increasing the temperature increases the rate of vibration of solid particles to and fro.

At a certain temperature for a particular solid, the particles breakaway from the solid structure and the solid melts.

Decrease of temperature for a particular solid will increase the rate of vibration

Question 2 of 24

3. Why is the Diffusion of copper sulphate faster in warm water than in cold water?

Because movement of particles is faster in hot liquids due to increased energy

Because of a decrease in the kinetic energy of the particle with decrease in temperature.

temperature does not change anything

None of above

Question 3 of 24

4. Which of the following states of matter has the fastest rate of diffusion?

Solid state

Gas state

Liquid state

molten

Question 4 of 24

5. Define Kinetic Theory of matter

Matter is made up of very small particles which are immobile

Matter is made up of very small particles which are in constant random motion

Matter is made up of very BIG particles which are in constant random motion.

Matter is made up of particles which IN MOTION.

Question 5 of 24

6. When you pour Copper (ii) sulphate solution in water which principle are you trying to investigate?

Diffusion in Liquids

Diffusion in solids

Diffusion in gases

None of the above

Question 6 of 24

7. State how an increase in temperature will affect Brownian motion?

It will result to an increase in the constant random motion of particles

It will result to a decrease in the constant random motion of particles

It will have no affect at all

None of the above

Question 7 of 24

8. If you cut paper into small pieces endlessly until it cannot be cut into pieces or subdivided anymore, you are:

Trying to demonstrate that matter is made up of tiny particles.

Trying to demonstrate that matter is not made up of tiny particles.

Trying to demonstrate that matter is made up of solid, gas and liquids.

None of the above

Question 8 of 24

9. What is the difference in the diffusion process when you pour some Copper (ii) sulphate solution into cold water and some from the same sample in warm water?

Diffusion of copper sulphate will be faster in warm water than in cold water

No difference at all

Diffusion of copper sulphate will be slower in warm water than in cold water

Diffusion of copper sulphate will not occur in cold water but only in warm water.

Question 9 of 24

10. State how a decrease in temperature will affect Brownian motion?

It will result to an increase in the constant random motion of particles

No effect at all

It will result to a decrease in the constant random motion of particles

None of the above

Question 10 of 24

11. Sublimation is the process by which a solid changes directly to gaseous state when heated

Maybe

False

True

None

Question 11 of 24

12. Which of the following is NOT an experiment to demonstrate that matter is made up of tiny particles?

Dilution of potassium permanganate crystals in water.

Cutting a piece of paper into many tiny particles

Dissolving salt in water

Brownian Motion in Liquids

Question 12 of 24

13. What does a smoke cell experiment investigate?

Diffusion in Liquids

Brownian motion in air

Confirming the suggestion that air is made up of small particles which are in constant motion

diffusion in solids

Question 13 of 24

14. Which of the following is NOT a state of matter?

Solid

Gas

Liquid

Vacuum

Question 14 of 24

15. Brownian Motion suggests that particles of Liquids i.e. water or air is in constant random movement.

True

False

Maybe

None

Question 15 of 24

16. Vaporization is the process when a liquid is heated and changes to gaseous state.

True

False

Maybe

None

Question 16 of 24

17. Diffusion is the process by which particles spread from regions of high concentration to those of low concentration?

True

False

Maybe

None

Question 17 of 24

18. Which of the following particles has the highest random motion?

Solid particles

Liquid particles

Gas particles

None

Question 18 of 24

19. Which statement is INCORRECT about Gas particles?

Gas particles have an increased random motion compared to Liquid particles

Cohesive forces between gases is extremely small compared to Liquid particles

Gas particles when compared in a container they collide with each other resulting to Gas pressure.

Gas particles can be heated up to be changed into solid state.

Question 19 of 24

20. Condensation is a process where gas molecules lose some of their energy and fall back into Liquid state.

TRUE

False

Maybe

None

Question 20 of 24

21. Why is Diffusion in Gases faster than in Solids or Liquids?

Low density

High kinetic energy

Low cohesive forces

All of above

Question 21 of 24

22. Which statement is INCORRECT about Liquid particles?

Cohesive forces between particles in Liquid are weaker compared to those in solid.

Due to weak cohesive forces they can flow and take shape of a container

Cohesive forces between Liquid particles are Stronger compared to those in Solid.

When a Liquid is heated it changes into Gaseous state.

Question 22 of 24

23. As a student in the Lab, explain why you can detect a Gas Leakage?

It is possible to detect because of diffusion of the Gas from the Leak point

Due to the color visible of the Gas from the Leak point

Due to the smell of the Gas from the Leak point

None of the above

Question 23 of 24

24. Matter is anything that occupies space and has Mass

True

False

Maybe

None

Question 24 of 24

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