Chemical Reaction Engineering
An autothermal reactor is

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

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Chemical Reaction Engineering
Mean residence time is equal to the space time, when

The temperature, pressure and the density of reaction mixture remains constant throughout the reactor
All of these
The feed rate is measured at temperature and pressure in the reactor
There is no change in number of moles in gaseous reaction

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