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

Correct Answer: Conversion in both will be the same but concentrations will be different

Bissoy MCQ
#Chemical Engineering #Chemical Reaction Engineering

Related Questions

A first order reaction is to be treated in a series of two mixed reactors. The total volume of the two reactors is minimum, when the reactors are
A Equal in size
B Of different sizes
C Of such size that the ratio of their volumes is
D None of these
An endothermic aqueous phase first order irreversible reaction is carried out in an adiabatic plug flow reactor. The rate of reaction
A Is maximum at the inlet of the reactor
B Goes through a maximum along the length of the reactor
C Goes through a minimum along the length of the reactor
D Is maximum at the exit of the reactor
In case of the irreversible unimolecular type, first order reaction, the fractional conversion at any time for constant volume system as compared to variable volume system is
A More
B Less
C Same
D Either A or B, depends on other factors
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
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
With increase in the space time of an irreversible isothermal reaction being carried out in a P.F. reactor, the conversion will
A Increase
B Decrease
C Remain same
D Data in insufficient; can't be predicted
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
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
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
Half life period of a first order irreversible reaction A → B is
A $$\frac{{\text{k}}}{2}$$
B $$\ln \frac{{\text{k}}}{2}$$
C $$\ln \frac{2}{{\text{k}}}$$
D $$\ln \frac{{{\text{0}}{\text{.5}}}}{{\text{k}}}$$

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