Chemical Reaction Engineering
For the liquid phase zero order irreversible reaction A → B, the conversion of A in a CSTR is found to be 0.3 at a space velocity of 0.1min⁻¹ . What will be the conversion for a PFR with a space velocity of 0.2 min⁻¹? Assume that all the other operating conditions are the same for CSTR and PFR.

0.3
0.9
0.6
0.15

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Chemical Reaction Engineering
For reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a

Tubular reactor is preferred over a single CSTR for high yield
Batch reactor is preferred over a single CSTR for high yield
Single CSTR is the most suitable
Both A and B

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Chemical Reaction Engineering
Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor?

Very high temperature should be used throughout the reaction
None of these
Very low temperature should be used throughout the reaction
Temperature should be high in the beginning and decreased towards the end of the reaction

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