Chemical Engineering

In the reversible reaction of the type, A + B AB, in general

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Question: In the reversible reaction of the type, A + B AB, in general
[A].

both forward and backward reactions will be exothermic.

[B].

neither of the reactions will be en-dothermic.

[C].

the combination reaction will be exothermic, while the dissociation reaction will be endothermic.

[D].

the combination reaction will be endothermic, while the dissociation reaction will be exothermic.

Answer: Option C

Explanation:

No answer description available for this question.

Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals.

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Question: Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals.
[A].

organic peroxides

[B].

sulphuric acid

[C].

hydroflouric acid

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

In the gaseous phase ammonia formation reaction (N2 + 3H2 2NH3), the value of the equilibrium constant depends on the

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Question: In the gaseous phase ammonia formation reaction (N2 + 3H2 2NH3), the value of the equilibrium constant depends on the
[A].

total pressure of the system.

[B].

volume of the reactor.

[C].

temperature.

[D].

initial concentration of N2 and H2.

Answer: Option C

Explanation:

No answer description available for this question.

For the flow of gases through a capillary, with increase in temperature, the permeability __________ as per Knudsen law.

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Question: For the flow of gases through a capillary, with increase in temperature, the permeability __________ as per Knudsen law.
[A].

increases

[B].

decreases

[C].

remains same

[D].

either (a) or (b); depends on the gas

Answer: Option A

Explanation:

No answer description available for this question.

Calcination reaction of limestone (CaCO3 CaO + CO2) goes to completion in the rotary kiln, because

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Question: Calcination reaction of limestone (CaCO3 CaO + CO2) goes to completion in the rotary kiln, because
[A].

CaO is not dissociated.

[B].

CO2 escapes continuously.

[C].

of high calcination temperature.

[D].

CaO is more stable than CaCO3.

Answer: Option B

Explanation:

No answer description available for this question.