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Chemical Reaction Engineering

Chemical Reaction Engineering
The eddy diffusivity for a liquid in plug flow must be

Between 0 and 1
∞
0
1

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Chemical Reaction Engineering
From collison theory, the reaction rate constant is proportional to

Tm.exp(- E/RT)
Exp(- E/RT)
Exp(- E/2RT)
√T

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Chemical Reaction Engineering
Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of catalyst/rate if notsnowed by pore diffusion) Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus)

Tan hT/T
Tan hT/tan T
None of these
Tan T/T

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Chemical Reaction Engineering
Velocity of a reaction depends upon the

All of these
Temperature at which the reaction is carried
Nature of the reactants
Concentration of the reactants

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

Temperature
Volume of the reactor
Initial concentration of N₂ and H₂
Total pressure of the system

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Chemical Reaction Engineering
If in the gaseous phase reaction, N₂O₄ ⇋ 2NO₂, x is the part of N₂O₄ which dissociates, then the number of molecules at equilibrium will be

(1 + x)²
(1 + x)
(1 - x)
(1 - x)²

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