Chemical Engineering MCQs

Partial pressure of a component over a solution is proportional to its mole fraction in the liquid

Partial pressure of a component over a solution is proportional to the mole fraction in the vapour

Vapour pressure is equal to the product of the mole fraction and total pressure

Partial pressure is equal to the product of the mole fraction and total pressure

Sieve plate column

Bubble cap column

Randomly packed column

Wetted wall column

Gas side mass transfer co-efficient should be increased

Liquid side mass transfer co-efficient should be increased

Liquid side mass transfer co-efficient should be decreased

Mass transfer co-efficient must be kept constant

1

< 1

> 1

?

Less number of trays are required

Composition of the residue remains unchanged

More number of trays are required but the residue composition remains unchanged

More number of trays are required and the residue composition is more dilute in methanol

Of slope = 1

Ofslope = 0.1

Tangential to the equilibrium curve

None of these

0.31

0.107

0.017

0.215

High temperature distillation

For heat-sensitive materials

Very low pressure distillation

Both B and C

Temperature rises

Pressure rises

Temperature falls

Pressure falls

Wetted wall

Bubble cap

Perforated tray

Packed