A. Adiabatic
B. Isothermal
C. Isometric
D. None of these
✅ The correct answer is option B.
Chemical Engineering MCQs
Enthalpy ‘H’ is defined as
A. H = E – PV
B. H = F – TS
C. H – E = PV
D. None of these
✅ The correct answer is option C.
When liquid and vapour phase of multi-component system are in equilibrium (at a given temperature and pressure), then chemical potential of each component is
A. Same in both the phases
B. Zero in both the phases
C. More in vapour phase
D. More in liquid phase
✅ The correct answer is option A.
A chemical reaction will occur spontaneously at constant pressure and temperature, if the free energy is
A. Zero
B. Positive
C. Negative
D. None of these
✅ The correct answer is option C.
The first law of thermodynamics is a restatement of the law of conservation of
A. Mass
B. Energy
C. Momentum
D. None of these
✅ The correct answer is option B.
Critical temperature is defined as the temperature above which a gas will
A. Not liquify (barring exceptions)
B. Immediately liquify
C. Never liquify however high the pressure may be
D. None of these
✅ The correct answer is option C.
Which is a state function?
A. Specific volume
B. Work
C. Pressure
D. Temperature
✅ The correct answer is option B.
What is the number of degrees of freedom for liquid water in equilibrium with a mixture of nitrogen and water vapor?
A. 2
B. 0
C. 3
D. 1
✅ The correct answer is option A.
In the ammonia synthesis reaction, N₂ + 3H₂ ⇋ 2NH₃ + 22.4 kcal, the formation of NH₃ will be favoured by
A. High temperature
B. Low pressure
C. Low temperature only
D. Both low temperature and high pressure
✅ The correct answer is option D.
Requisites of a reversible process is that the
A. System and surroundings pressure be equal
B. Friction in the system should be absent
C. System and surroundings temperature be equal
D. None of these
✅ The correct answer is option B.