Chemical Engineering MCQs

Very slow

Very fast

Photochemical

Both B and C

k ∝ T1.5

k ∝ exp(-E/RT)

k ∝ √T

k ∝ T

Initiates a chemical reaction and is a catalyst by itself

Atlers the position of equilibrium in a reversible reaction

Increases the number of active centres by increasing the unevenness of catalyst surface and by creating discontinuities in the crystals

All of the above

Uniformity of temperature

Comparatively smaller equipment

Very small pressure drop

Absence of continuous catalyst regeneration facility

Increasing the concentration of one of the reactants

Increasing the concentration of one or more of the products

Removal of at least one of the products at regular interval

None of these

Fluidised bed reactor

Moving bed reactor

Fixed bed reactor

None of these

1/τ exp (-t/τ)

Τ exp (-t/τ)

Exp(-t/τ)

1/τ (-t/τ)

Reaction rate

Concentration

Both A & B

Neither A nor B

Increases

Remains unchanged

Decreases

Unpredictable from the data

(i) exothermic (ii) endothermic

(i) exothermic (ii) exothermic

(i) endothermic (ii) enodthermic

(i) endothermic (ii) exothermic