Discussion
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- Question
From among the following, choose one which is not an exothermic process.
Options- A. Methanol synthesis
- B. Catalytic cracking
- C. Ammonia synthesis
- D. Oxidation of sulphur
- Correct Answer
- Catalytic cracking
- 1. The single parameter model proposed for describing non-ideal flow is the __________ model.
Options- A. tank in series
- B. dispersion
- C. both (a) & (b)
- D. neither (a) nor (b). Discuss
- 2. In case of physical adsorption, the heat of adsorption is of the order of __________ kcal/kg.mole.
Options- A. 100
- B. 1000
- C. 10000
- D. 100000 Discuss
- 3. A reversible liquid phase endothermic reaction is to be carried out in a plug flow reactor. For minimum reactor volume, it should be operated such that the temperature along the length
Options- A. decreases.
- B. increases.
- C. is at the highest allowable temperature throughout.
- D. first increases and then decreases. Discuss
- 4. The excess energy of reactants in a chemical reaction required to dissociate into products is termed as the __________ energy.
Options- A. activation
- B. potential
- C. binding
- D. threshold Discuss
- 5. __________ is the response curve for a step input signal from a reactor.
Options- A. S-curve
- B. C-curve
- C. I-curve
- D. none of these Discuss
- 6. 'N' plug flow reactors in series with a total volume 'V' gives the same conversion as a single plug flow reactor of volume 'V' for __________ order reactions.
Options- A. first
- B. second
- C. third
- D. any Discuss
- 7. In a consecutive reaction system
when E1 is much greater than E2, the yield of B increases with the
Options- A. increase of temperature.
- B. decrease of temperature.
- C. increase in initial concentration of A.
- D. decrease in initial concentration of A. Discuss
- 8. The rate constant of a chemical reaction decreases by decreasing the
Options- A. pressure
- B. concentration of reactants
- C. temperature
- D. duration of reaction Discuss
- 9. For a heterogeneous catalytic reaction
Options- A. free energy of activation is lowered in the presence of catalyst, which remains unchanged at the end of reaction.
- B. a relatively small amount of catalyst can cause the conversion of large amount of reactants which does not mean that catalyst concentration is important.
- C. the catalyst does not form an intermediate complex with the reactant.
- D. the surface of the catalyst does not play an important role during reaction. Discuss
- 10. __________ explains the mechanism of catalysis.
Options- A. Activated complex theory
- B. Collision theory
- C. Thermodynamics
- D. None of these Discuss
Chemical Reaction Engineering problems
Search Results
Correct Answer: both (a) & (b)
Correct Answer: 1000
Correct Answer: is at the highest allowable temperature throughout.
Correct Answer: activation
Correct Answer: C-curve
Correct Answer: any
Correct Answer: increase of temperature.
Correct Answer: temperature
Correct Answer: free energy of activation is lowered in the presence of catalyst, which remains unchanged at the end of reaction.
Correct Answer: Activated complex theory
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