4
8
12
16
✅ The correct answer is option D.
Chemical Engineering MCQs
In chamber process of sulphuric acid manufacture in industry, the gas phase oxidation of SO₂ to SO₃ is accomplished by a __________ reaction.
Non-catalytic homogeneous
Non-catalytic heterogeneous
Catalytic homogenous
Catalytic heterogeneous
✅ The correct answer is option C.
When an exothermic reversible reaction is conducted adiabatically, the rate of reaction
Continuously increases
Continuously decreases
Passes through a maximum
Passes through a minimum
✅ The correct answer is option C.
Kinetics of a catalytic reaction can be best studied on a/an __________ reactor.
Mixed
Integral (plug flow)
Differential (flow)
Either A, B and C
✅ The correct answer is option D.
The minimum energy required to allow a chemical reaction to proceed is termed as the ‘threshold energy ‘. Chemical reaction with low activation energy are
Always irreversible
Insensitive to temperature changes
Mostly irreversible
Highly temperature sensitive
✅ The correct answer is option B.
The rate constant of a chemical reaction decreases by decreasing the
Pressure
Concentration of reactants
Temperature
Duration of reaction
✅ The correct answer is option C.
A catalyst promoter
Improves the activity of a catalyst
Acts as a catalyst support
Itself has very high activity
All of the above
✅ The correct answer is option A.
The equilibrium constant K of a chemical reaction depends on
Temperature only
Pressure only
Temperature and pressure
Ratio of reactants
✅ The correct answer is option A.
Chemical reaction rate of a component depends upon the
Composition of the component only
Temperature of the system
Pressure of the system
All of the above
✅ The correct answer is option D.