Properties of Gases

Q.

What is the physical state of water at 50°C?

Q.

Give reason why?

Solids are not compressible, but gases are highly compressible.

Q. Why do liquids and gases have no superficial or linear expansion? $\left[1\text{Mark}\right]$

Q.

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

1. Spherical

2. Random shape

3. Cylindrical

4. Cubical

Q.

Matter contracts on cooling

1. True
2. False

Q.

Expansion is maximum in

1. Solids

2. Liquids

3. Gases

4. Both (A) and (B)

Q.

Why gases exert same pressure in all the direction?

Q.

Matter __________ on heating and _________ on cooling.

Q.

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

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

Q.

Large volumes of CNG is filled in small cylinders easily due to which property of gases?

1. compressibility

2. diffusion

3. low specific gravity

4. Low density

Q.

Which property(ies) seperate(s) solids from fluids?

1. Fluids can flow solids can't.

2. Fluids don't have shape and solids do.

3. Fluids have more mass than solids.

4. Intermolecular spaces in solids are more than fluids

Q.

Differentiate between the following: liquid and gas

Q.

Kinetic energy of gaseous particles increases on increasing temperature.

1. True
2. False

Q. Molecular interactions between molecules is in order :

1. gas < liquid < solid
2. solid < liquid < gas
3. solid < gas < liquid
4. liquid < solid < gas