Lessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about ______________ percent? | MCQ Hive

Chemical Engineering Refractory Technology

Q Lessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about ______________ percent?

A A. 5
B B. 20
C C. 35
D D. 55

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