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[ayche]

please help me with this question:

The packing of an existing absorption tower is replaced with a new type of packing. The height of the packing and the inlet conditions are maintained the same as before.  Tests reveal that the number of transfer units is lower than before. This indicates that the tower with the new packing when compared to that with the old packing will

 

(A) have a higher rate of absorption of the solute from the gas stream

( B ) have a lower rate of absorption of the solute from the gas stream

© have the same rate of absorption of the solute from the gas stream

(D) have a lower height rate of transfer unit.

 

 

According to me the answer should be (A) because if NTU is less means driving force is more for mass transfer and hence the rate of absorption should be more but the answer given everywhere is ( B ).

Please help

regards 

ayche

Edited by ayche, 10 January 2014 - 10:10 AM.