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Chemical Reaction Engineering

Chemical Reaction Engineering
For the chemical reaction X → Y, it is observed that, on doubling the concentration of 'X', the reaction rate quadruples. If the reaction rate is proportional to Cxn, then what is the value of 'n' ?

16
43834
2
4

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Chemical Reaction Engineering
What is the order of a chemical reaction in which doubling the initial concentration of the reactants doubles the half life time of the reaction?

3
2
Zero
1

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Chemical Reaction Engineering
For a first order chemical reaction, the rate constant

Is not a function of the unit of time
Changes on changing the concentration units
None ofthese
Has unit of time⁻¹

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Chemical Reaction Engineering
For an ideal mixed flow reactor (CSTR), the exit age distribution E(t) is given by

A dirac delta function
A step function
None of these
A ramp function

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

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

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Chemical Reaction Engineering
Catalyst carriers

Inhibit catalyst poisoning
Have very high selectivity
Provide large surface area with a small amount of active material
Increase the activity of a catalyst

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