Mass Transfer
Absorption (liquid-gas system) with evolution of heat as compared to isothermal absorption results in

Decreased solute solubility
All of these
Large number of trays
Large minimum liquid to gas (L/G) ratio

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Mass Transfer
Use of raschig rings in place of crushed stones as packing in packed beds (other things being same)

Increases pressure drop, decreases surface area
Decreases pressure drop, increases surface area
Increases pressure drop, increases surface area
Decreases pressure drop, decreases surface area

ANSWER DOWNLOAD EXAMIANS APP