Chemical Engineering - Chemical Reaction Engineering

21. 

Rate of an autocatalytic chemical reaction is a function of

A. temperature only.
B. pressure only.
C. composition only.
D. all (a), (b) and (c).

Answer: Option D

Explanation:

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22. 

Which of the following curves shows the effect of temperature on the extent of gas-solid adsorption at a given pressure ?

A. Langmuir adsorption isotherm
B. Adsorption isobar
C. Freundlich adsorption isotherm
D. None of these

Answer: Option B

Explanation:

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23. 

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

Answer: Option D

Explanation:

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24. 

Fluid flow in a real packed bed can be approximated as __________ model.

A. plug flow
B. dispersion
C. mixed flow
D. tank in series

Answer: Option B

Explanation:

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25. 

For series reaction, the relative yield

A. is always greater for plug-flow reactor than for the single CSTR of the same volume.
B. statement in (a) is wrong.
C. decreases with increasing conversion.
D. both (a) and (c) hold good.

Answer: Option D

Explanation:

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