A. Is the most efficient of all refrigeration cycles
B. Has very low efficiency
C. Requires relatively large quantities of air to achieve a significant amount of refrigeration
D. Both B and C
✅ The correct answer is option D.
Chemical Engineering MCQs
Which of the following is a thermodynamic property of a system?
A. Concentration
B. Mass
C. Temperature
D. Entropy
✅ The correct answer is option D.
(∂E/∂T)V is the mathematical expression for
A. CV
B. Enthalpy change
C. Free energy change
D. None of these
✅ The correct answer is option D.
Comparing sulphate process with sulphite process, we find that __________ in the later.
Both temperature & pressure in the former is less than that
Both temperature & pressure in the former is more than that
Temperature is more in the former whereas pressure is more
Pressure is more in the former whereas temperature is less
✅ The correct answer is option B.
CO & H₂ are the constituents of
Producer gas
Water gas
Coke oven gas
All of the above
✅ The correct answer is option D.
Forward reaction will be favoured for the exothermic reaction, represented by CO + H₂O ⇋ CO₂ + H₂, by
A. Low temperature and high pressure
B. Low temperature and low pressure
C. High temperature and high pressure
D. High temperature and low pressure
✅ The correct answer is option A.
Cp of a gas at its critical temperature and pressure
A. Becomes zero
B. Becomes infinity
C. Equals 1 kcal/kmol °K
D. Equals 0.24 kcal/kmol °K
✅ The correct answer is option B.
At absolute zero temperature, the __________ of the gas is zero.
A. Pressure
B. Volume
C. Mass
D. None of these
✅ The correct answer is option B.
Starting raw material for the manufacture of alum is
Alumina
Gypsum
Bauxite
Ammonium bicarbonate
✅ The correct answer is option C.
For a cyclic process, a fixed ratio between heat and work
A. Always exists
B. May exist
C. Never exists
D. Is difficult to predict
✅ The correct answer is option A.