The liquid air has three components X, Y and Z whose boiling points are : -186C, -183C and -196C, respectively. When liquid air is fed into a tall fractional distillation column from near its bottom and warmed up slowly:

(a) Which component will be collected from near the bottom of the fraction distillation column? Why?


(b) Which component will be collected from the top part of the fractional distillation column? Why?


(c) Which component will be collected from the middle part of the fractional distillation column? Why?


(d) What could the component X, Y and Z be?

(a) Y; It has the highest boiling point of, -183C

(b) Z; It has the lowest boiling point of, -196C


(c) X; It has a boiling point of, -186C, which is lower than that of Y but higher than that of Z


(d) X is liquid argon; Y is liquid oxygen; Z is liquid nitrogen


86