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Chemical Reaction Engineering

Chemical Reaction Engineering
Transition state theory gives the rate constant as

K α T . e-E/RT
K α eE/RT
K α √T . e-E/RT
K α e-E/RT

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Chemical Reaction Engineering
Which of the following resistances is not involved in a gas phase catalytic (gas- solid) reaction?

Ash resistance
Surface phenomenon resistance
Gas film and pore surface diffusion resistances for products
Gas film and pore surface diffusion resistances for reactants

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Chemical Reaction Engineering
In a first order reaction, the time required to reduce the concentration of reactant from 1 mole/litre to 0.5 mole/litre will be __________ that required to reduce it from 10 moles/litre to 5 moles/litre in the same volume.

Same as
Less than
Data insufficient; can't be predicted
More than

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Chemical Reaction Engineering
According to Arhenious equation of temperature dependency of rate constant for an elementary reaction

K ∝ e-E/RT
None of these
K ∝ √T
K ∝ T e-E/RT

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Chemical Reaction Engineering
Which of the following chemical reactions will be favoured by low pressure ?

N₂O₂ ⇋ 2NO₂
N₂ + O₂ ⇋ 2NO
2HI ⇋ H₂ + I₂
None of these

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Chemical Reaction Engineering
In case of physical adsorption, the heat of adsorption is of the order of __________ kcal/kg.mole.

100000
1000
10000
100

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