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Chemical Reaction Engineering

Chemical Reaction Engineering
A chemical reaction is of zero order, when the reaction rate is (where, CA = concentration of reactant)

∝ CA
Independent of temperature
∝ 1/CA
None of these

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Chemical Reaction Engineering
An exothermic reaction takes place in an adiabatic reactor. The product temperature __________ reactor feed temperature.

Is always greater than
Is always less than
Is always equal to
May be greater or less than

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Chemical Reaction Engineering
In case of the irreversible unimolecular type, first order reaction, the fractional conversion at any time for constant volume system as compared to variable volume system is

Less
More
Either A or B, depends on other factors
Same

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Chemical Reaction Engineering
Differential method for analysing the kinetic data is used

None of these
For testing complicated mechanisms
When the data are scattered
When rate expressions are very simple

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Chemical Reaction Engineering
A catalyst is said to be a negative catalyst, ifit

Reduces the value of equilibrium constant
Does not initiate the reaction
All of these
Retards the rate of reaction

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

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