Gaseous State and Its Properties

Q.

Give Reason: A Gas fills completely the vessel in which it is kept.

Q.

The pressure exerted by the gas is because:

1. Particles of gas hit each other.

2. Particles of gas are highly compressible.

3. Gas particles has less inter molecular force between the particles.

4. Particles of gas hit the walls of the containers.

Q.

Which of the following best describes gases?

1. No definite volume and no definite shape
2. Definite shape and volume
3. Definite volume but no definite shape
4. Definite shape but no definite volume

Q. solids and liquids have well defined surfaces while gases donot.why

Q.

Why does a gas exert pressure on the walls of the container?

1. Particles of gas react with each other.

2. Particles of gas are static.

3. Particles of gas hit the walls of container.

4. Particles of the gas hit each other.

Q. On the basis of the kinetic theory of matter , explain why
A) ---solid have a fixed shape and a fixed volume.
B) ---liquid have a fixed volume but not a fixed shape.
C) ---gases have neither a fixed shape not a fixed volume.

Q.

What is the shape of the gas in cylindrical can of deodorant?

1. Spherical

2. Cubical

3. Cylindrical

4. Random shape

Q.

Why do we observe that the entire beaker appears bluish in colour when ink is dissolved in the beaker filled with water?

Q.

A substance X was highly compressible and could be easily liquified. It could also take up the shape of any container. Predict the nature of the substance. Enlist four properties of this state of matter.

Q.

What is the shape of the gas in a cylindrical can of deodorant?

1. Spherical

2. Cubical

3. Cylindrical

4. Random shape

Q.

How do the gases exert pressure?

1. By hitting each other's particles

2. By hitting the walls of the container

3. By hitting each other's particles and the walls of the container

4. By repelling away each other's particles.

Q. Gases are incompressible.

1. True
2. False

Q. The random movement of particles is maximum in gas.

1. False
2. True

Q.

Which of the following best describes gas?

1. No definite volume and no definite shape.

2. Definite shape and volume.

3. Definite volume and no definite shape.

4. Definite shape but no definite volume.

Q.

Air occupies space.

1. True

2. False

Q. have no definite shape and volume.

1. Gases
2. Solids
3. Liquids

Q. Particles of a particular substance show maximum random movement in the state.

1. solid
2. liquid
3. gaseous

Q.

Which of the following best describes gas?

1. Definite shape and volume.

2. Definite volume and no definite shape.

3. Definite shape but no definite volume.

4. No definite volume and no definite shape.

Q.

Which of the following occupies more volume for the same number of particles?

1. Solid

2. Liquid

3. Gas

4. Both gases and liquids occupy the same space.

Q.

The pressure exerted by the gas is because of:

1. particles of gas hitting each other.

2. particles of gas hitting the walls of the containers.

3. particles of gas being highly compressible.

4. gas particles have less inter molecular force between them.

Q. What is the shape of the gas in cylindrical can of deodorant?

1. Cylindrical
2. Random shape
3. Spherical
4. Cubical