Quiz

TopicsChemical EngineeringChemical Reaction Engineering

Question: Which of the following fixes the volume of a batch reactor for a particular conversion and production rate?
Options:
 A. Operating conditions (e.g. pressure and temperature) B. Rate constant C. Density of mixture D. None of these

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Question 1. The conversion XA and residence time data are collected for zero order liquid phase reaction in a stirred tank reactor. Which of the following will be a straight line?
1.    XA Vs . τ
2.    XA Vs ln τ
3.    XA/(1 - XA)Vs τ
4.    XA(1 - XA)Vs τ
Question 2. The 'E' curve for a non-ideal reactor defines the fraction of fluid having age between t and t + dt
1.    At the inlet
2.    At the outlet
3.    In the reactor
4.    Averaged over the inlet and outlet
Question 3. The reactions with low activation energy are
1.    Always spantaneous
2.    Slow
3.    Fast
4.    Non-spontaneous
Question 4. The rate of the chemical reaction A → B doubles as the concentration of A i.e.., CA is doubled. If rate of reaction is proportional to CAn, then what is the value of n for this reaction?
1.    0.5
2.    1
3.    0
4.    2
Question 5. Sometimes, batch process is preferred over continuous process, when the product
1.    Quality & yield can not be achieved in continuous processes, because of long residence time
2.    Sales demand is fluctuating
3.    Both A & B
4.    Neither A nor B