Chemical Engineering - Chemical Reaction Engineering

16.
The reaction A B is conducted in an adiabatic plug flow reactor (PFR). Pure A at a concentration of 2 kmol/m3 is fed to the reactor at the rate of 0.01 m3 /s and at a temperature of 500 K. If the exit conversion is 20%, then the exit temperature (in k)is (Data: Heat of reaction at 298 K = - 50000 kJ/ kmole of A reacted Heat capacities CPA = CPB = 100kJ/kmole. K (may be assumed to be independent of temperature))
400
500
600
1000
Answer: Option
Explanation:
No answer description is available. Let's discuss.

17.
Which of the following is not a theory of homogeneous reaction?
Collision theory and activated complex theory
Chain reaction theory
Radiation hypothesis
None of these
Answer: Option
Explanation:
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18.
A first order homogeneous reaction of the type X Y Z (consecutive reaction) is carried out in a CSTR. Which of the following curves respectively show the variation of the concentration of X, Y and Z with time?
I, II, III
III, II, I
III, I, II
II, III, i
Answer: Option
Explanation:
No answer description is available. Let's discuss.

19.
In a semi-batch reactor,
mixing takes place in axial direction only.
velocity of reaction can be controlled.
condition similar to plug flow reactor exists.
residence time is constant.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

20.
Most important characteristics of gas-liquid reactors are the
specific inter-facial area
liquid hold-up
both (a) and (b)
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.