Chemical Reaction Engineering MCQ Questions & Answers | Chemical Engineering

A. In a first order reaction, A → products; the reaction becomes slower as it proceeds, because the concentration of A decreases and the rate is proportional to the concentration of A

B. Transition state theory approaches the problem of calculating reaction rates by concentrating on the idea of activated complexes

C. According to the penetration theory, the mass transfer co-efficient decreases, if the exposure time of an eddy to the solute decreases

D. If the rate of an irreversible reaction, A + B → 2C is k.C_A.C_B, then the reaction is always elementary

A. N₂ + O₂ ⇋ 2NO

B. PCl₃ + Cl₂ ⇋ PCl₅

C. N + 3H₂ ⇋ 2NH₃

D. 2SO₂ + O₂ ⇋ 2SO₃

A. Continuous reaction

B. Unreacted core

C. Both A and B

D. Neither A and B

A. Batch reactor

B. Tubular flow reactor

C. Stirred tank reactor

D. Fluidised bed reactor

A. A catalyst is added

B. The temperature is increased

C. An inert gas is pumped keeping the temperature constant

D. None of these

A. Increases

B. Decreases

C. Remains same

D. May increase or decrease depending on the type of reaction

A. Initiates a chemical reaction and is a catalyst by itself

B. Atlers the position of equilibrium in a reversible reaction

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

D. All of the above

A. Conservation of mass

B. Avagadro's hypothesis

C. Gaseous volumes

D. None ofthese

A. First

B. Second

C. Third

D. Any

A. Reaction rate

B. Concentration

C. Both A & B

D. Neither A nor B