A. More in vapour phase
B. More in liquid phase
C. Same in both the phases
D. Replaced by chemical potential which is more in vapour phase
✅ The correct answer is option C.
Chemical Engineering MCQs
The expression, nCv(T₂ – T₁), is for the __________ of an ideal gas.
A. Work done under adiabatic condition
B. Co-efficient of thermal expansion
C. Compressibility
D. None of these
✅ The correct answer is option A.
Adiabatic compression of a saturated water vapour makes it
A. Supersaturated
B. Superheated
C. Both A and B
D. Neither A nor B
✅ The correct answer is option B.
Which of the following is not affected by temperature changes?
A. Fugacity
B. Activity co-efficient
C. Free energy
D. None of these
✅ The correct answer is option D.
Vapour which is at a pressure smaller than the saturation pressure for the temperature involved is called a __________ vapour.
A. Superheated
B. Desuperheated
C. Non-condensable
D. None of these
✅ The correct answer is option A.
Near their critical temperatures, all gases occupy volumes __________ that of the ideal gas.
A. Less than
B. Same as
C. More than
D. Half
✅ The correct answer is option A.
A refrigerator may be termed as a
A. Heat pump
B. Heat engine
C. Carnot engine
D. None of these
✅ The correct answer is option A.
The second law of thermodynamics states that
A. The energy change of a system undergoing any reversible process is zero
B. It is not possible to transfer heat from a lower temperature to a higher temperature
C. The total energy of system and surrounding remains the same
D. None of the above
✅ The correct answer is option D.
The quantitative effect of temperature on chemical equilibrium is given by the
A. Vant-Hoff equation
B. Le-Chatelier’s principle
C. Arhenius equation
D. None of these
✅ The correct answer is option A.
In an adiabatic process, the
A. Heat transfer is zero
B. Temperature change is zero
C. Work done is a path function
D. Enthalpy remains constant
✅ The correct answer is option A.