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Reported Question / Answer
Q.) The average concentration of oxygen in the boundary layers surrounding the bubbles (Co*) in a reactor is normally determined by
1)
laser based photographic systems
2)
ultra-small dissolved oxygen probes
3)
measuring the steady state concentration of oxygen in the bulk liquid after inoculation of the reactor
4)
measuring the steady state concentration of oxygen in the bulk liquid prior to inoculation of the reactor
5)
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Answer :
4
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