Mass Transfer
Low viscosity absorbent is preferred for reasons of

Low pressure drop on pumping
Improved flooding characteristics
All of these
Rapid absorption rates and good heat transfer characteristics

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Mass Transfer
Humid volume is the total volume in m³ of 1 kg of

Vapour laden gas at 1 atm. and gas temperature
Vapour laden gas at 1 atm. and room temperature
Gas plus its accompanying vapour at 1 atm. and gas temperature
Gas plus its accompanying vapour at 1 atm. and room temperature

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