A. Isothermally
B. Isobarically
C. Adiabatically
D. None of these
✅ The correct answer is option C.
Chemical Engineering MCQs
All gases above its inversion temperature, in a throttling process will show
A. A heating effect
B. No change in temperature
C. A cooling effect
D. Either A or C
✅ The correct answer is option A.
The shape of T-S diagram for Carnot Cycle is a
A. Rectangle
B. Rhombus
C. Trapezoid
D. Circle
✅ The correct answer is option A.
For a constant pressure reversible process, the enthalpy change (ΔH) of the system is
A. Cv.dT
B. Cp.dT
C. ∫Cp.dT
D. ∫Cv.dT
✅ The correct answer is option C.
In a reversible process
A. Tds = dE + dW
B. DE – dW = Tds
C. DW – dE = Tds
D. Tds – dW + dE >0
✅ The correct answer is option A.
Which of the following has the least thermal efficiency?
A. Steam engine
B. Carnot engine
C. Diesel engine
D. Otto engine
✅ The correct answer is option A.
Work done is a
A. Property of the system
B. Path function
C. Point function
D. State description of a system
✅ The correct answer is option B.
In the reaction, H₂ +I₂ ⇋ 2HI, addition of an inert gas will
A. Increase the partial pressure of H₂
B. Increase the partial pressure of I₂
C. Increase the total pressure and hence shift the equilibrium towards the right
D. Not effect the equilibrium conditions
✅ The correct answer is option D.
Pick out the extensive property out of the following.
A. Surface tension
B. Free energy
C. Specific heat
D. Refractive index
✅ The correct answer is option B.
With increase in reduced temperature, the fugacity co-efficient of a gas at constant reduced pressure
A. Increases
B. Decreases
C. Remains same
D. Decreases linearly
✅ The correct answer is option A.