question_answer 47)

    On the basis of data given below predict which of the following gases shows least adsorption on a definite amount of charcoal?

Gas	Co2	SO2	CH4	H2
Critical temp./k	304	630	190	33

  (a) CO2        (b) S02         (c) CH4          (d) H2

Answer:

                    (d) Lesser the value of critical temperature of gases lesser will be the extent of adsorption. Here H2 has lowest value of critical temperature, i.e., 33. Hence, hydrogen gas shows least adsorption on a definite amount of charcoal.