- (A) Partial pressure of the vapour to the vapour pressure of the liquid at room temperature
- (B) Partial pressure of the vapour to the vapour pressure of the liquid at gas temperature
- (C) Actual humidity to saturation humidity
- (D) None of these
Exam preparation MCQs with answers
Practice Pakistan's most useful MCQs for competitive exams
Prepare for NTS, PPSC, FPSC and subject-wise tests with fresh multiple choice questions, clear options and quick answer reveal.
Latest MCQs
- (A) That of normal condensation
- (B) Integral heat of adsorption
- (C) Zero
- (D) None of these
- (A) A solution of benzene, toluene and o-xylene
- (B) 35% solution of camphor in water
- (C) 35% solution of NH3 in water
- (D) A solution of polar organic compounds (not of homologue of a series)
- (A) Chemical properties
- (B) Physical properties
- (C) Degree of turbulence
- (D) Interfacial area
- (A) Both liquids flow at fixed rate
- (B) Both liquids can have any desired flow rate
- (C) Only one of the liquids may be pumped at any desired rate
- (D) Liquid’s flow rate depends upon the temperature and pressure
- (A) Greater degree of separation with a fixed number of trays
- (B) Increased reboiler load
- (C) Increased reflux ratio
- (D) None of these
- (A) K ∝ D
- (B) K ∝√D
- (C) K ∝ D1.5
- (D) K ∝ D2
- (A) Toluene-benzene
- (B) Acetone-carbon disulphide
- (C) Water-isobutyl alcohol
- (D) None of these
- (A) Temperature
- (B) Vapour pressure of either component
- (C) Total pressure
- (D) None of these
- (A) Packed column
- (B) Sieve tray
- (C) Bubble cap
- (D) Any of these
