A. 0
B. +ve
C. -ve
D. ∞
✅ The correct answer is option B.
Chemical Engineering MCQs
Builders are added in soap to act as
Cleaning power booster
Anti-redeposition agent
Corrosion inhibitor
Fabric brightener
✅ The correct answer is option A.
What is the value of Joule-Thomson co-efficient for an ideal gas?
A. +ve
B. -ve
C. 0
D. ∞
✅ The correct answer is option C.
On opening the door of an operating refrigerator kept in a closed room, the temperature of the room will
A. Increase
B. Decrease
C. Remain same
D. Increase in summer and will decrease in winter
✅ The correct answer is option A.
Refrigerants commonly used for domestic refrigerators are
A. Ethyl chloride or methyle chloride
B. Freon-12
C. Propane
D. NH₃ or CO₂
✅ The correct answer is option A.
Chemical formula of BHC, which is an insecticide is
C₆H₆Cl₆
C₆Cl₆
C₆H₅Cl
C₆H₄Cl₂
✅ The correct answer is option A.
The necessary and sufficient condition for equilibrium between two phases is
A. The concentration of each component should be same in the two phases
B. The temperature of each phase should be same
C. The pressure should be same in the two phases
D. The chemical potential of each component should be same in the two phases
✅ The correct answer is option D.
Which of the following is an undesirable characteristics of a refrigerant ?
A. It should be non-explosive
B. It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils
C. Its vapor pressure at the condenser temperature should be very high
D. None of these
✅ The correct answer is option B.
__________ paper is used in the manufacture of newsprint paper.
Groundwood
Board
Tissue
Wrapping
✅ The correct answer is option A.
For an ideal gas, the activity co-efficient is
A. Directly proportional to pressure
B. Inversely proportional to pressure
C. Unity at all pressures
D. None of these
✅ The correct answer is option C.