Question

A mixture of ideal gases is cooled up to liquid helium temperature (4.22 $K$) to form an ideal solution

• A. True
• B. False
• C. Ambiguous
• D. Data insufficient

Answer 1

Answer: (B)

False

An ideal gas is a hypothetical gas whose pressure, volume and temperature behaviour is completely described by the ideal gas equation. No gas is ideal or perfect. All gases are real gases. Real gases do not obey the ideal gas laws exactly under all conditions of temperature and pressure.
Real gases deviate from ideal behaviour because of mainly two assumptions of "Kinetic theory of gases".
(i)The volume of gas-particle is negligible compared to the volume of the container (while the real gas-particle have some significant volume).
(ii)There is no interaction between gaseous particles (while attraction forces exist between real gas particles).
So, a mixture of ideal gases cannot be cooled up to liquid helium temperature (4.22 $K$) to form an ideal solution because there are no forces of attraction between the molecules.

Hence, the given statement is $\text{false}$