A. Chemical potential
B. Activity
C. Fugacity
D. Activity co-efficient
✅ The correct answer is option A.
Chemical Engineering MCQs
Chemical engineering thermodynamics is concerned with the __________ in/of chemical processes.
A. Reaction mechanism
B. Calculation of rates
C. Energy transformation from one form to the another
D. None of these
✅ The correct answer is option C.
The number of degrees of freedom for a mixture of ice and water (liquid) are
A. 2
B. 3
C. 1
D. 0
✅ The correct answer is option C.
The gas law (PV = RT) is true for an __________ change.
A. Isothermal
B. Adiabatic
C. Both A & B
D. Neither A nor B
✅ The correct answer is option C.
Free energy change at equilibrium is
A. Zero
B. Positive
C. Negative
D. Indeterminate
✅ The correct answer is option A.
Free energy change of mixing two liquid substances is a function of the
A. Concentration of the constituents only
B. Quantities of the constituents only
C. Temperature only
D. All of the above
✅ The correct answer is option D.
A refrigeration cycle is the same as a __________ cycle,
A. Turbine
B. Heat engine
C. Reversed heat engine
D. None of these
✅ The correct answer is option C.
1st law of thermodynamics is nothing but the law of conservation of
A. Momentum
B. Mass
C. Energy
D. None of these
✅ The correct answer is option C.
The standard state of a gas (at a given temperature) is the state in which fugacity is equal to
A. Unity
B. Activity
C. Both A & B
D. Neither A nor B
✅ The correct answer is option C.
For the reversible exothermic reaction, N₂ + 3H₂ ⇋ 2NH₃, increase of pressure would
A. Shift the equilibrium towards right
B. Give higher yield of NH₃
C. Both B and C
D. Neither A nor B
✅ The correct answer is option C.