Question

In the separation of components of mixture of air by the process of fractional
distillation, which of the following is the correct sequence to be followed to cool
the air so that it turns into liquid?
a)Compression, rapid expansion and cooling
b)Cooling, compression and rapid expansion
c)Compression, cooling and rapid expansion
C)Rapid expansion, compression, and cooling​

Answer 1

Answer:

(d) rapid expansion, compression and cooling