Question

The main reason for deviation of gases from the ideal behavior is few assumptions of kinetic theory. These are
(i)there is no force of attraction between the molecules of gas
(ii)The volume of molecules of a gas is negligibly small in comparison to the volume of the gas.
(iii)Particles of a gas are always in constant random motion.
A.(i) and (ii)
B.(ii) and (iii)
C.(i), (ii) and (iii)
D.(iii) only

Answer 1

Hint: The deviation of gases from the ideal behavior is basically dependent on the two main factors, the volume of the molecules of the gases and the force of attraction between the molecules of the gases. The collisions between the molecules of gas are assumed as perfectly elastic.

Complete step by step answer:
The term deviation of gases tells us about the deviation in the behavior of real gases from the ideal behavior of gases.
The reason behind the deviation of gases from the ideal behavior is few assumptions of kinetic theory.
The assumptions are as follows:
The first assumption is that the particles are point sized. This means that the particles have no volume as compared to the volume of the vessel.
The second assumption is that there is no force of attraction between the molecules of gas, hence the collisions of molecules are treated as perfectly elastic.
Due to these two assumptions we can see the deviations from the ideal behavior of gases.
Additional information:
Kinetic theory of gases was introduced in order to explain the behavior of gases. The molecules of gas were assumed as spheres. This theory basically describes the characteristics that are influenced by the gas such as temperature and pressure.
Hence option (A) is correct.

Note:
As we have discussed that the particles are assumed as point sized and they have no force of attraction in them but in reality they have some volume, they also show some attractive forces among themselves.