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- Question
For a reaction of the type,
, the rate of reaction (- rx) is given by
Options- A. (K1+K1)CX
- B. (K1+K2+K3)CX
- C. K1CV - K2CX
- D. (K1-K2)CX
- Correct Answer
- K1CV - K2CX
- 1. Which of the following is the most suitable for very high pressure gas phase reaction?
Options- A. Batch reactor
- B. Tubular flow reactor
- C. Stirred tank reactor
- D. Fluidised bed reactor Discuss
- 2. In an exothermic chemical reaction, the reactants compared to the products have
Options- A. higher temperature
- B. more energy
- C. less energy
- D. same energy. Discuss
- 3. 'If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the
Options- A. pressure
- B. temperature
- C. both (a) & (b)
- D. neither (a) nor (b) Discuss
- 4. Radioactive decay follows __________ order kinetics.
Options- A. first
- B. second
- C. third
- D. zero. Discuss
- 5. For an isothermal variable volume batch reactor, the following relation is applicable for a first order irreversible reaction.
Options- A. XA = k . t
- B.
- C. -ln(1 - XA) = kt
- D. ?A . ln (1 - XA) = k . t Discuss
- 6. For high conversion in a highly exothermic solid catalysed reaction, use a __________ bed reactor.
Options- A. fixed
- B. fluidised bed reactor followed by a fixed
- C. fixed bed reactor followed by a fluidised
- D. fluidised Discuss
- 7. Specific rate constant for a second order reaction
Options- A. is independent of temperature.
- B. varies with temperature.
- C. depends on the nature of the reactants.
- D. both (b) and (c). Discuss
- 8. Pick out the wrong statement pertaining to space velocity of flow reactors.
Options- A. The unit of space velocity is (time)-1 .
- B. The space velocity of 3 hr-1 means that three reactor volumes of feed at specified conditions are being fed into the reactor every hour.
- C. The space velocity of 3 hr-1 means that one third reactor volume of feed at specified conditions are being fed into the reactor.
- D. none of these. Discuss
- 9. BET apparatus
Options- A. measures the catalyst surface area directly.
- B. operates at very high pressure.
- C. is made entirely of stainless steel.
- D. none of these. Discuss
- 10. The most unsuitable reactor for carrying out reactions in which high reactant concentration favours high yields is
Options- A. backmix reactor
- B. plug flow reactor
- C. series of CSTR
- D. PFR in series Discuss
Chemical Reaction Engineering problems
Search Results
Correct Answer: Tubular flow reactor
Correct Answer: more energy
Correct Answer: temperature
Correct Answer: first
Correct Answer:
Correct Answer: fluidised bed reactor followed by a fixed
Correct Answer: both (b) and (c).
Correct Answer: The space velocity of 3 hr-1 means that one third reactor volume of feed at specified conditions are being fed into the reactor.
Correct Answer: none of these.
Correct Answer: backmix reactor
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