Chemical Engineering MCQs

6108 MCQs  (Page 183 of 611)

Flash distillation is suitable for the separation of components_________________?
A. Having very close boiling points
B. Which form maximum boiling azeotrope
C. Having very wide boiling points
D. Which form minimum boiling azeotrope
Very tall packed towers are divided into series of beds to___________________?
A. Reduce the overall pressure drop
B. Avoid channelling
C. Reduce liquid hold-up
D. Avoid flooding
The McCabe ΔL law states that the____________________?
A. Molar heats of vaporisation of components are nearly equal
B. Linear crystal growth rate depends on the degree of super-saturation
C. Linear crystal growth rate does not depend on the crystal size
D. Linear crystal growth rate depends on the crystal size
Steam distillation is used for separation of high boiling ____________________?
A. Substances from non-volatile impurities
B. Volatile impurity from still higher boiling substances
C. Both a. and b.
D. Neither a. nor b.