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Chemical Reaction Engineering

Chemical Reaction Engineering
What is the value of 'n' if the reaction rate of the chemical reaction A → B, is proportional to CAn and it is found that the reaction rate triples, when the concentration of 'A' is increased 9 times ?

3
1/2
1/9
1/3

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Chemical Reaction Engineering
When the reaction is dominated by in-traparticle diffusion, the apparent order of reaction (nD) as measured is related to the true order (n) as

ND = n + 1
ND = n/2
ND = (n + 1)/2
None of these

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Chemical Reaction Engineering
Transition state theory relates the above quantities as

K ∝ T.eE/RT
K ∝ e-E/RT
K ∝ T1.5
K ∝ √T

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Chemical Reaction Engineering
A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is

Data insufficient, can't be predicted
1
0.5
0.33

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Chemical Reaction Engineering
Which of the following is a controlling factor in very fast heterogeneous reaction?

Temperature
Composition of reactant
Heat and mass transfer effects
Pressure

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Chemical Reaction Engineering
During manufacture of H₂SO₄, the oxidation of SO₂ to SO₃ by oxygen is an en- dothermic reaction. The yield of SO₃ will be maximised, if the

Temperature is reduced and pressure is increased
Pressure is reduced
Temperature is increased and pressure is reduced
Temperature is increased

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