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Chemical Reaction Engineering

Chemical Reaction Engineering
For an isothermal second order aqueous phase reaction, A → B, the ratio of the time required for 90% conversion to the time required for 45% conversion is

22
4
2
11

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Chemical Reaction Engineering
A reversible liquid phase endothermic reaction is to be carried out in a plug flow reactor. For minimum reactor volume, it should be operated such that the temperature along the length

Increases
Decreases
Is at the highest allowable temperature throughout
First increases and then decreases

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Chemical Reaction Engineering
The following gas phase reactions are carried out isothermally in a CSTR.A → 2R ; r₁ = K₁pA ;K₁ = 20mole/(sec.m³ bar)A → 3S ; r₂ = K₂ pA ;K₂ = 40mole/ (sec.m³ .bar)What is the maximum possible value of FR(mole/sec.) ?

2
43832
43864
43833

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Chemical Reaction Engineering
In which of the following gaseous phase reversible reactions, the product yield can not be increased by the application of high pressure?

PCl3 + Cl₂ ⇋ PCl5
2SO₂ + O₂ ⇋ 2SO₃
N + 3H₂ ⇋ 2NH₃
N₂ + O₂ ⇋ 2NO

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Chemical Reaction Engineering
The catalyst in a first order chemical reaction changes the

Heat of reaction
Heat of formation of the product
Equilibrium constant
Activation energy

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Chemical Reaction Engineering
Helium-mercury method can be used to determine the __________ of the catalyst particle.

Pore volume
Solid density
Porosity
All of these

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