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February 2019

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 ?

Chemical Reaction /
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 ?

A. 0.15
B. 0.30
C. 0.60
D. 0.90

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 ? Read More »

Chemical Reaction

When the density of the reaction mixture is constant in a chemical reaction, the ratio of the mean residence time to space time is__________________?

Chemical Reaction /
When the density of the reaction mixture is constant in a chemical reaction, the ratio of the mean residence time to space time is__________________?

A. > 1
B. < 1
C. 1
D. 0

When the density of the reaction mixture is constant in a chemical reaction, the ratio of the mean residence time to space time is__________________? Read More »

Chemical Reaction

When all the limiting reactant is consumed in the reaction, the operational yield _______________ the relative yield?

Chemical Reaction /
When all the limiting reactant is consumed in the reaction, the operational yield _______________ the relative yield?

A. Is greater than
B. Is smaller than
C. Equals
D. Can be either greater or smaller than (depends on the type of reaction)

When all the limiting reactant is consumed in the reaction, the operational yield _______________ the relative yield? Read More »

Chemical Reaction

For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a _________________ reactor?

Chemical Reaction /
For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a _________________ reactor?

A. Stirred tank
B. Tubular flow
C. Batch
D. Fixed bed

For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a _________________ reactor? Read More »

Chemical Reaction