Properties of Gases

Q.

Why gases are .highly compressible ?

Q.

What do you mean by Fluidity?

Q.

Compare the compressibility of solids, liquids and gases.

Q. The rate of diffusion is maximum in .

1. solid
2. liquid
3. gas

Q.

Matter which are highly compressible

1. Solid

2. Liquid

3. Gases

4. All of above

Q.

Which of the following is/are easily compressible?

1. Iron & Sponge

2. Iron & Nitrogen

3. Sponge & Nitrogen

4. Rock & Iron

Q.

A fragrance that is sprayed at one end of the room can spread throughout the room by the process of ___.

Q.

Which one of the following sets of phenomena would increase on raising the temperature?

1. Evaporation, condensation of gases

2. Intermolecular distance, diffusion

3. Diffusion, intermolecular forces

4. Diffusion, compression of gases

Q.

The smell of perfume is felt due to diffusion.

1. True
2. False

Q.

Mercury has a tendency of sticking to the glass.

1. True
2. False

Q. The gas in a cylindrical can of deodorant is in shape.

1. spherical
2. cubical
3. cylindrical
4. random

Q.

Liquids and gases are highly compressible.

1. True
2. False

Q.

Give one word for the following.

Strong attractive force existing between the molecules of a substance.

Q.

Explain inter-molecular force.

Q.

A fragrance that is sprayed at one end of the room can spread throughout the room by the process of______

1. condensation

2. distillation

3. diffusion

4. filteration

Q.

Which of the following is/are property/properties of gas?

1. Compressibility

2. Rigidity

3. Fluidity

4. Definite shape

Q.

Fluids do not have their own shape but take the shape of the containing vessel.

1. True
2. False

Q.

The random movement of particles is more in:

1. Liquid

2. Gas

3. Solid

4. Liquid and Solid

Q.

A tightly closed container contains $500ml$ of gas. Now, the gas is carefully transported into a $1000ml$ container without any leakage. What is the volume of gas in the new container?

1. $250ml$

2. $500ml$

3. $1000ml$

4. $1500ml$

Q.

Why do we smell the hot food across the room?

Q. When a gas is in thermal equilibrium, its molecules

1. have the same average kinetic energy.
2. have different energies which remains constant.
3. have a certain constant energy.
4. do not collide with one another.

Q.

The amount of space occupied by matter is called its_________

Q. A black hole has

1. zero density and infinite volume
2. infinite volume and infinite density
3. zero volume and zero density
4. zero volume and infinite density

Q.

Intermolecular spaces are maximum in case of:

1. gold

2. water

3. honey

4. air