Chemical Engineering - Chemical Reaction Engineering

36. 

For an isothermal variable volume batch reactor, the following relation is applicable for a first order irreversible reaction.

A. XA = k . t
B.
C. -ln(1 - XA) = kt
D. εA . ln (1 - XA) = k . t

Answer: Option B

Explanation:

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37. 

For a zero order chemical reaction, the

A. half life period is directly proportion to the initial concentration of the reac-tants.
B. plot of products concentration with time is a straight line through the origin.
C. products concentration increases linerarly with time.
D. all (a), (b) and (c).

Answer: Option D

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38. 

BET apparatus

A. measures the catalyst surface area directly.
B. operates at very high pressure.
C. is made entirely of stainless steel.
D. none of these.

Answer: Option D

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39. 

Radioactive decay follows __________ order kinetics.

A. first
B. second
C. third
D. zero.

Answer: Option A

Explanation:

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40. 

The excess energy of reactants in a chemical reaction required to dissociate into products is termed as the __________ energy.

A. activation
B. potential
C. binding
D. threshold

Answer: Option A

Explanation:

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