Question # 1

Pressure remaining constant, at which temperature the volume of a gas will become twice of what it is at 0 ^oC

Choose an answer

546 ^oC

200 ^oC

546 K

273 K

In gas occupies a volume of 2 dm³at 27°C and I atm pressure. The expression for its volume at S.T.P. is

Choose an answer

What are the SI units of Van der Waal constant 'a'

Choose an answer

atm dm3 mol-2

atm dm6 mol-2

Nm4 mol-2

Nm mol-1

The molar volume of CO₂is maximum at

Choose an answer

STP (0°C and 1 atm)

127° C and 1 atm

0°C and 2 atm

273°C and 2 atm

Observed pressure is less than ideal pressure for any gas due to

Choose an answer

Intermolecular forces

Size of molecules

Boiling point of molecules

Both a and c

An Ideal gas can not be liquefied because.

Choose an answer

Its critical temperature is always above 0 ^oC

It molecules are relatively smaller in size

Its solidify before becoming a liquid

Force operative between its molecules are negligible

The total kinetic energy of one mole of an ideal gas is given by

Choose an answer

3/2 RT

1/2 KT

1/2 RT

3/2 KT

Which of the following will have the same number of molecule at STP.

Choose an answer

280 cm3 CO2 and 280 cm3 of N2O

11.2 dm3 of O2 and 32 g of O2

44 g of CO2 and 11.2 dm3 of CO

28 g of N2 and 5.6 dm3 of oxygen

The commonly used unit of pressure by meteorologists is.

Choose an answer

Atmosphere

Pascal

Milli

Pound inch3

If the number of gas molecules are doubled in a certain volume of a gas, the pressure is.

Choose an answer

Decreased to half

Doubled

Increased to four time

Remains unchanged

Normal temperature and pressure (S.T.P) of gas rafers to

Choose an answer

273 K and 76 mm Hg

273° C and 760 mm Hg

273 K and 760 mm Hg

273° C and 76 mm Hg

Vapour pressure of liquid depends upon

Choose an answer

Amount of liquid

Surface area

Temperature

Size of container

Which one of the following gases diffuse more rapidly.

Choose an answer

Cl2

CO2

CH4

N2

The deviation of a gas from ideal behavior is maximum at.

Choose an answer

-10 ^oC and 5.0 atm

-10^oC and 2 atm

0^oC and 2 atm

100^oC and 2 atm

Which mixture of gases is used by the deep sea divers.

Choose an answer

Oxygen and nitrogen

Oxygen and helium

Oxygen and carbon di oxide

Oxygen and water vapours

If absolute temperature of a gas is doubled and the pressure is reduced to one half, the volume of the gas will

Choose an answer

Remain unchanged

Increase four times

Reduce to 1/4

Be doubled

The temperature of natural plasma is about.

Choose an answer

200000 ^oC

10000^oC

5000^oC

1000^oC

The spreading of fragrance of a rose or scent in air is due to.

Choose an answer

Effusion

Diffusion

Osmosis

Evaporation

More Classes

Other Links

Chemistry Fsc Part 1 Chapter 3 Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer