Chemical Reaction Engineering - Section 1 (2)

Directions to Solve

Chemical Reaction Engineering - Section 1

The MCQs related to Chemical Reaction Engineering
are available in this section and you can solve the problems to test your skills.

Pick out the correct statement.

A.	In catalytic reactions, the catalyst reacts with the reactants.
B.	A catalyst initiates a chemical reaction.
C.	A catalyst lowers the activation energy of the reacting molecules.
D.	A catalyst can not be recovered chemi cally unchanged at the end of the chemical reaction.

Answer: Option C

Explanation:

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10.

For a solid catalysed chemical reaction, the effectiveness of solid catalyst depends upon the __________ adsorption.

A.	physical
B.	chemical
C.	both (a) and (b)
D.	neither (a) nor (b)

Answer: Option B

Explanation:

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11.

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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12.

Radioactive decay follows __________ order kinetics.

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

Answer: Option A

Explanation:

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13.

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

Explanation:

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14.

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

Explanation:

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15.

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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16.

For the irreversible elementary reactions in parallel viz 455-247-1 , the rate of disappearance of 'X' is equal

A.	CA(K1+K2)
B.	CA(K1 + K2)/2
C.	CA . K1/2
D.	CA . K2/2

Answer: Option A

Explanation:

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Chemical Reaction Engineering - Section 1 (2)

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