The absorption factor is defined as (where, L = liquid flow rate, G = gas flow rate and, m = slope of the equilibrium line)

ANS:A -

The absorption factor, often denoted as 𝛽β, is defined as the ratio of the liquid flow rate (L) to the gas flow rate (G) divided by the slope (m) of the equilibrium line. Mathematically, it is expressed as: 𝛽=𝐿𝐺⋅𝑚β=G⋅mL​ Explanation:

• The absorption factor is a dimensionless parameter used in the analysis of gas absorption processes, particularly in packed towers or absorption columns.
• It represents the effectiveness of the liquid phase in absorbing the gas phase solute.
• A higher absorption factor indicates a more efficient absorption process, meaning that a smaller amount of liquid is required to achieve a given degree of gas absorption.
• The slope (m) of the equilibrium line represents the change in solute concentration in the liquid phase per unit change in solute concentration in the gas phase. It is typically determined experimentally or calculated based on thermodynamic models.
• The absorption factor takes into account both the liquid flow rate, which determines the amount of absorbing solvent available, and the slope of the equilibrium line, which reflects the driving force for mass transfer between the gas and liquid phases.
• By normalizing the liquid flow rate with respect to the gas flow rate and the slope of the equilibrium line, the absorption factor provides a useful metric for comparing different absorption systems and optimizing process conditions.