Related Questions

An endothermic second order reaction is carried out in an adiabatic plug flow reactor. The rate of heat generation is
A Maximum at the inlet of the reactor
B Maximum at the exit of the reactor
C Maximum at the centre of the reactor
D Constant throughout the reactor
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
A Decreases
B Increases
C Is at the highest allowable temperature throughout
D First increases and then decreases
With increase in the order of reaction (for all positive reaction orders), the ratio of the volume of mixed reactor to the volume of plug flow reactor (for identical feed composition, flow rate and conversion)
A Increases
B Decreases
C Remains same
D Increases linearly
The ratio of volumes of the mixed reactor to the plug flow reactor (for identical feed composition, flow rate, conversion, and for all positive reaction orders) is always
A 1
B >1
C Equal to the order of reaction
For a first order reaction carried out in a plug flow reactor, the space time is
A $$\frac{1}{{\text{K}}}\ln \frac{{{{\text{C}}_0}}}{{\text{C}}}$$
B $$\frac{1}{{\text{K}}}\ln \frac{{\text{C}}}{{{{\text{C}}_0}}}$$
C $${\text{K}}\ln \frac{{{{\text{C}}_0}}}{{\text{C}}}$$
D $${\text{K}}\ln \frac{{\text{C}}}{{{{\text{C}}_0}}}$$
A first order irreversible reaction, A → B is carried out separately in a constant volume as well as in a variable volume reactor for a particular period. It signifies that __________ in the two reactors.
A Both conversion as well as concentration are same
B Conversion in both will be the same but concentrations will be different
C Both the conversion as well as concentrations will be different
D None of these
An isothermal irreversible reaction is being carried out in an ideal tubular flow reactor. The conversion in this case will __________ with decrease in space time.
A Increase
B Increase exponentially
C Decrease
D Remain unchanged
The size of plug flow reactor (PFR) for all positive reaction orders and for any given duty, is __________ that of mixed reactor.
A Greater than
B Equal to
C Smaller than
D Unpredictable from the data
For identical flow rate, feed composition and for elementary first order reactions, 'N' equal sized mixed reactors in series with a total volume 'V' gives the same conversion as a single plug flow reactor of volume 'V' for constant density systems. This is true, when the value of 'N' is
A 1
B >1
C ∞
D ≥1
An irreversible first order reaction is being carried out in a CSTR and PFR of same volume. The liquid flow rates are same. The relative conversion will
A Be more in CSTR than in PFR
B Be more in PFR than in CSTR
C Be same in both cases
D Depend on the temperature

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