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Chemical Reaction Engineering

Chemical Reaction Engineering
The reaction in which one of the products of reaction acts as a catalyst is called a/an __________ reaction.

Autocatalytic
Photochemical
Catalytic
Biochemical

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Chemical Reaction Engineering
In which of the following gaseous phase reversible reactions, the product yield can not be increased by the application of high pressure?

2SO₂ + O₂ ⇋ 2SO₃
N + 3H₂ ⇋ 2NH₃
N₂ + O₂ ⇋ 2NO
PCl3 + Cl₂ ⇋ PCl5

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Chemical Reaction Engineering
A pulse tracer is introduced in an ideal CSTR (with a mean residence time ι) at time, t = 0. The time taken for the exit concentration of the tracer to reach half of its initial value will be

τ/0.693
2τ
0.693τ
0.5τ

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Chemical Reaction Engineering
The conversion for a first order liquid phase reaction. A → B in a CSTR is 50%. If another CSTR of the same volume is connected in series, then the % conversion at the exit of the second reactor will be

90
75
60
100

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Chemical Reaction Engineering
Space time equals the mean residence time

For large diameter tubular reactor
For narrow diameter tubular reactor
For CSTR
When the density of the reaction mixture is constant

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Chemical Reaction Engineering
The catalytic activity of enzymes is due to their capacity to lower the __________ energy.

Kinetic
Potential
Activation
None of these

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