Related Questions

For an ideal mixed flow reactor (CSTR), the exit age distribution E(t) is given by
A A dirac delta function
B A step function
C A ramp function
D None of the above
Recycling back of outlet stream to the reactor from an ideal CSTR carrying out a first order liquid phase reaction will result in __________ in conversion.
A Decrease
B Increase
C No change
D Either A or B, depends on the type of reaction
In a CSTR __________ varies with time.
A Reaction rate
B Concentration
C Both A & B
D Neither A nor B
For a packed bed reactor; the presence of a long tail in the residence time distribution curve is an indication of
A Ideal plug flow
B Bypass
C Dead zone
D Chanelling
What is the dispersion number for a CSTR?
A 0
B 1
C ∞
A first order reaction requires two equal sized CSTR. The conversion is
A Less when they are connected in series
B More when they are connected in series
C More when they are connected in parallel
D Same whether they are connected in series or in parallel
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
The performance of a cascade of CSTR's can be improved by adding
A A P.F. reactor in series
B A P.F. reactor in parallel
C More CSTR's in series
D More CSTR's in parallel
Temperature control of an exothermic chemical reaction taking place in a CSTR is done with the help of cooling water flowing in a jacket around the reactor. The types of valve and controller action to be recommended are
A Air to open valve with the controller direct acting
B Air to close valve with the controller indirect acting
C Air to open valve with the controller indirect acting
D Air to close valve with the controller direct acting
The partial pressure distribution of an ideal gas diffusing through another stagnant ideal gas at steady state follows a/an __________ law.
A Exponential
B Parabolic
C Linear
D Cubic

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