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Chemical Reaction Engineering

Chemical Reaction Engineering
Maximum equilibrium conversion for endothermic reaction is obtained at the __________ temperature.

Highest possible
Room
Lowest possible
Intermediate

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Chemical Reaction Engineering
Cold shot cooling is only practical when the feed temperature is __________ than the reaction temperature.

Higher
Much higher
Lower
Much lower

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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

2τ
0.693τ
τ/0.693
0.5τ

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Chemical Reaction Engineering
Rate of an autocatalytic chemical reaction is a function of

Pressure only
Temperature only
Composition only
All of these

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Chemical Reaction Engineering
Catalyst is a substance, which __________ chemical reaction.

Decreases the speed of a
Increases the speed of a
Alters the value of equilibrium constant in a reversible
Can either increase or decrease the speed of a

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Chemical Reaction Engineering
For the non-catalytic reaction of particles with surrounding fluid, the time needed to achieve the same fractional conversion for particles of different but unchanging sizes is proportional to the square of particle diameter, when the __________ is the controlling resistance.

Chemical reaction
Film diffusion
Diffusion through ash layer
Either A, B or C

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