Agas stream contains 10% co2 by volume and 90 % n2. 95% of co2 is to be removed by absorption into pure water. the tray absorption column is operated at 10 atm and 5 °c. estimate the number of the equilibrium stages required if the liquid rate of 1.5 times the minimum liquid henry's law constant for co2 in water at 5 °c is 876 atm/mole fraction rate is used

vanderwaal's forces of attraction are the electrostatic intermolecular forces that exist in a molecule due to the temporary or permanent dipoles that are developed in a molecule. in , the major intermolecular forces are dipole-dipole interactions as the molecule is polar (bent structure). so the vanderwaal's forces of interaction in between molecules are the permanent dipole-dipole interactions that develop due to the dipole that exists in between the polar h - s bond. the positively charged hydrogen atom is attracted towards the negative end of the dipole that is sulfur of the adjacent molecule. therefore, these forces of attraction are relatively stronger than that of london dispersion forces that exist in non polar molecules.

i think   the answer is c hope i'm right