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Chemical Reaction Engineering

Chemical Reaction Engineering
The vessel dispersion number (D/μL) for plug flow is

∞
500
750

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Chemical Reaction Engineering
A reactor is generally termed as an autoclave, when it is a

High pressure tubular reactor
Atmospheric pressure tank reactor
Atmospheric pressure CSTR
High pressure batch reactor

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Chemical Reaction Engineering
Carbon particles accummulated on the catalyst used in the gas oil cracking lies in the category of __________ poison.

Deposited
Chemisorbed
Selectivity
Stability

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Chemical Reaction Engineering
If helium is introduced in a reactor containing O₂, SO₂ and SO₃ at equilibrium, so that total pressure increases while volume and temperature remains constant. In this case the dissociation of SO₃ (as per Le Chatlier principle)

Increases
Decreases
Changes unpredictably
Remains unaltered

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Chemical Reaction Engineering
The reaction between oxygen and organic material is a/an __________ reaction.

Photochemical
Biochemical
Exothermic
Endothermic

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

Of high calcination temperature
CO₂ escapes continuously
CaO is not dissociated
CaO is more stable than CaCO₃

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