- A. Fixed bed reactor
- B. Fluidised bed reactor
- C. Semi-fluidised bed reactor
- D. Plug-flow catalytic reactor
Chemical Reaction Engineering
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Which of the following will give maximum gas conversion?
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The irreversible reaction, X → Y, is the special case of the reversible reaction, X ⇋ Y, in which the_____.
- A. Equilibrium constant is infinite
- B. Fractional conversion of
- C. Concentration of
- D. All of the above
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In a/an _____ reactor, there is exchange of heat with the surroundings with sizeable temperature variation.
- A. Adiabatic
- B. Isothermal
- C. Non-adiabatic
- D. None of these
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6 gm of carbon is burnt with an amount of air containing 18 gm oxygen. The product contains 16.5 gms CO₂ and 2.8 gms CO besides other constituents. What is the degree of conversion on the basis of disappearance of limiting reactant?
- A. 100%
- B. 95%
- C. 75%
- D. 20%
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In case of a _____ reactor, the composition in the reactor and at the exit of the reactor is the same.
- A. Semi-batch
- B. Tubular
- C. Batch
- D. Back-mix
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Enzymes are destroyed, when the_____.
- A. Temperature is very high
- B. Reactant’s concentration is very high
- C. Reactant’s concentration is very low
- D. Reaction rate is independent of the reactant’s concentration
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A photochemical reaction is_____.
- A. Accompanied with emission of light
- B. Catalysed by light
- C. Initiated by light
- D. All of the above
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Half life period of a chemical reaction is proportional to CA0-1 , if the reaction is of _____ order.
- A. First
- B. Zero
- C. Second
- D. Third
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At a given value of E/R (ratio of activation energy and gas constant), the ratio of the rate constants at 500°K and 400°K is 2, if Arrhenious law is used. What will be this ratio, if transition state theory is used with the same value of E/R?
- A. 1.6
- B. 2
- C. 2.24
- D. 2.5
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Which one is the rate controlling step in a solid-gas non-catalytic reaction occurring at very high temperature?
- A. Pore diffusion
- B. Film diffusion
- C. Ash layer diffusion
- D. Chemical reaction