During aeration, a cylindrical reactor had a height of 10 m. Without a – McqOptions

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1.	During aeration, a cylindrical reactor had a height of 10 m. Without aeration, the height was 7.5 m. Under these aeration and mixing conditions, the gas hold up in the reactor is
A.	0.75
B.	1
C.	0.25
D.	0.5
Answer» D. 0.5

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