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Chemical Reaction Engineering

Chemical Reaction Engineering
Reaction rate of a first order reaction, which is half completed in 23 minutes will be

0.03 hr⁻¹
0.05 min⁻¹
0.03 min⁻¹
0.03 sec⁻¹

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

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

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

Pressure only
All of these
Temperature only
Composition only

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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
100
75
60

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Chemical Reaction Engineering
A typical example of an exothermic reversible reaction conducted at high pressure in industry is

Dehydration of ethanol
Polymerisation of ethylene
Reformation of methane
Methanol synthesis

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Chemical Reaction Engineering
Space time equals the mean residence time

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

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