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Chemical Reaction Engineering

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

None of these
Activation
Kinetic
Potential

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Chemical Reaction Engineering
Space time equals the mean residence time

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

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Chemical Reaction Engineering
An autothermal reactor is

Most suitable for a reversible reaction
Isothermal in nature
Most suitable for a second order reaction
Completely self-supporting in its thermal energy requirements

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Chemical Reaction Engineering
The dimensions of rate constant for reaction 3A → B are (l/gm mole)/min. Therefore the reaction order is

1
2
3

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Chemical Reaction Engineering
Recycling back of outlet stream to the reactor from an ideal CSTR carrying out a first order liquid phase reaction will result in __________ in conversion.

No change
Decrease
Either A or B, depends on the type of reaction
Increase

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Chemical Reaction Engineering
Space time in flow reactor is

A measure of its capacity
Both A and B
Usually equal to the residence time
The reciprocal of the space velocity

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