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KINETIC MOLECULAR THEORY OF GASES

Total questions: 15

Worksheet time: 7mins

Name
Class
Date
1.

All of the following statements are related to the kinetic molecule theory of gases except:

a)

gas molecules have no inter-molecular forces

b)

gas particles are in random motion

c)

the collisions between gas particles are elastic

d)

gas particles have no volume

e)

the average kinetic energy is proportional to the Celsius temperature of the gas

2.

Which is not true about the Kinetic Molecular Theory?

a)

Gas molecules have forces of attraction for each other

b)

Collisions between gas molecules lead to a transfer of energy that is conserved

c)

Gas molecules have a negligible volume compared to the volume they occupy

d)

Gas molecules move in a random, straight-line motion

3.

Which of the following assumptions is incorrect according to kinetic theory of gases?

a)

Particles of a gas move in all possible directions in straight lines

b)

There is no force of attraction between the particles of a gas at ordinary temperature and pressure

c)

The actual volume of the gas is negligible in comparison to the empty space between them

d)

All the particles, at any particular time, have same speed and same kinetic energy

4.

Which one of the following statement is not consistent with the kinetic-molecular theory of gases?

a)

Individual gas molecules are relatively far apart

b)

The average kinetic energies of different gases are different at the same temperature

c)

The actual volume of the gas molecules themselves is very small compared to the volume occupied by the gas at ordinary temperature and pressure

d)

The theory explains most of the observed behavior of gases at ordinary temperatures and pressures

5.

The stoppers are removed from each container, which are in the same room at the same temperature. Which gas diffuses through the room the most slowly.

a)

chlorine

b)

helium

c)

hydrogen

d)

nitrogen

6.

Which postulate of KMT explains why gases are so easily compressed?

a)

All particles are infinitely small and the size of a particle is negligible compared to the container that it holds.

b)

The particles of gas are in constant motion and move in straight lines.

c)

The particles of gas do not exert any force of attraction or repulsion on each other. There is no energy loss during a collision.

d)

The mean kinetic energy of the particles is directly proportional to their absolute temperature.

7.

Each of the containers is shown at the same temperature. In which container is the average speed of the particles the fastest?

a)

chlorine

b)

nitrogen

c)

hydrogen

d)

oxygen

8.

Gases found in the environment are most likely to exhibit properties similar to that of ideal gases under conditions of:

a)

High temperatures and high pressures

b)

Low temperatures and low pressures

c)

High temperatures and low pressures

d)

Low temperatures and high pressures

9.

Particles will experience large velocities at ...

a)

Low temperature

b)

Intermediate temperature

c)

High temperature

d)

All of the above

10.

Which state of matter exhibits only vibrational movement?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

11.

According to kinetic theory of gases, the collisions between molecules of a gas:

a)

occur in a zig-zag path

b)

occur in a straight line

c)

change velocity and energy

d)

result in settling down of molecules

12.

Which one of the following is not a statement of kinetic theory of gases?

a)

The KE depends upon the temperature of the gas

b)

The KE depends upon the pressure of gas

c)

The collisions are elastic

d)

Pressure of gas is due to collisions of gas molecules on the walls of the container

13.

Which of the following statement(s) is/are true.

a)

The molecules in a gas take up a negligible amount of space in relation to the container they occupy.

b)

No energy is gained or lost when molecules collide.

c)

The molecules are in constant, linear motion.

d)

All are true

14.

Gas molecules exert pressure on the walls of the container because of

a)

momentum

b)

they obey gas laws

c)

they collide with each other

d)

they have finite volume

15.

Pressure is caused by

a)

gravity

b)

gas molecules colliding with each other

c)

gas molecules colliding with surface

d)

gas molecules reacting with each other