Question

For Five mark

Derive the ideal gas equation and explain following terms:-
(a) Compressibility factor.
(b) Critical temperature.​

Answer 1

Answer:

a) Z = P × V / n × R × T , where Z is the compressibility factor, for pressure P , volume V , gas constant R , number of moles n , and temperature T .

a) the compressibility factor (Z) is a correction factor which describes the deviation of a real gas from ideal gas behaviour.

b) For an ideal gas a = 0, since there exist no forces of attraction between the molecules. Therefore, the TC of such gases equal to zero.

Tc=27Rb8a

b) the temperature of a gas in its critical state, above which it cannot be liquefied by pressure alone.