1
0
2
3
✅ The correct answer is option A.
Chemical Engineering MCQs
The Hatta number is important in
Multicomponent distillation
Binary distillation
Gas absorption without chemical reaction
Gas absorption with chemical reaction
✅ The correct answer is option D.
Air at a particular humidity is heated in a furnace. The new dew point
Decreases
Increases
Depends on the extent of heating
Remain unchanged
✅ The correct answer is option B.
In case of an ideal solution, the total vapor pressure varies __________ with the composition expressed as mole fraction,
Inversely
Linearly
Exponentially
None of these
✅ The correct answer is option B.
Diffusion co-efficient generally depends upon the temperature, pressure & the nature of the components of the system. Its dimension is not the same as that of the
Mass transfer co-efficient
Thermal diffusivity
Kinematic viscosity
Volumetric diffusivity
✅ The correct answer is option A.
The solvent used in liquid-liquid extraction should have __________ less than one.
Selectivity
Distribution co-efficient
Both A & B
Neither A nor B
✅ The correct answer is option D.
Rate of leaching increases with increasing
Temperature
Viscosity of solvent
Pressure
Size of the solid
✅ The correct answer is option A.
Which of the following remains constant during evaporative cooling process with recirculated water supply?
Relative humidity
Partial pressure of vapour
Wet bulb temperature
None of these
✅ The correct answer is option C.
Molecular diffusivity of a liquid
Increases with temperature
Decreases with temperature
May increase or decrease with temperature
Is independent of temperature
✅ The correct answer is option A.
Humid volume is the total volume in m³ of 1 kg of
Vapour laden gas at 1 atm. and room temperature
Gas plus its accompanying vapour at 1 atm. and room temperature
Gas plus its accompanying vapour at 1 atm. and gas temperature
Vapour laden gas at 1 atm. and gas temperature
✅ The correct answer is option C.