### MCQs of Properties of Gases and Gas Mixtures

Showing 1 to 10 out of 20 Questions
1.

Gases of the same volume contain the same number of molecules. This is the description of

 (a) Boyle's law (b) Dalton's law (c) Charles' law (d) Avogadro's law
2.

According to Avogadro’s law, for a given pressure and temperature, each molecule of a gas

 (a) occupies volume proportional to its molecular weight (b) occupies volume inversely proportional to its molecular weight (c) occupies volume inversely proportional to its specific weight (d) occupies same volume
3.

The equation of the state per kg of a perfect gas is given by

 (a) ${p}^{2}v=RT$ (b) $pv=RT$ (c) $p{v}^{2}=RT$ (d) ${p}^{2}{v}^{2}=RT$
4.

The equation of state of an ideal gas is a relationship between the variables

 (a) pressure and volume (b) pressure and temperature (c) pressure, volume and temperature (d) none of the above
5.

In which condition can real gas obey closely the ideal gas equation?

 (a) Pressure is very small and temperature is very high (b) Pressure is very high and temperature is very low (c) Both pressure and temperature are very high (d) Both pressure and temperature are very low
6.

Vander Waals’ equation may be written as

 (a) $\left(p+\frac{a}{{v}^{2}}\right)\left(v-b\right)=RT$ (b) $\left(p-\frac{a}{{v}^{2}}\right)\left(v-b\right)=RT$ (c) $\left(p+\frac{a}{{v}^{2}}\right)\left(v+b\right)=RT$ (d) $\left(p-\frac{a}{{v}^{2}}\right)\left(v+b\right)=RT$
7.

Which of the following statement is true about the correction terms?

 (a) The coefficient a was introduced to account for the existence of mutual attraction between the molecules (b) The term $\frac{a}{{v}^{2}}$ is called the force of cohesion (c) The coefficient 'b' was introduced to account for the volumes of the molecules and is known as co-volume (d) All of the mentioned
8.

Which of the following is not true about ideal gas molecules?

 (a) They have negligible size (b) They do not have attractive forces (c) They do not apply pressure (d) They move in random motion
9.

For the ideal gas equation, what assumptions are made?

 (a) There is little or no attraction between the molecules of the gas (b) The volume occupied by the molecules is negligibly small compared to the volume of the gas (c) Both A and B (d) None of the mentioned
10.

What is the compressibility factor for an ideal gas?

 (a) 1 (b) 0.5 (c) 1.5 (d) Depends on the gas
Showing 1 to 10 out of 20 Questions