Wet air containing 4.0mol% water vapor is passed through a column of calcium chloride pellets. the pellets absorb 97.0% of the water and none of the other constituents of the air. the column packing was initially dry and had a mass of 3.40 kg. following 5.0 hours of operation, the pellets are weighed and found to have a mass of 3.54 kg.a) calculate the molar flow rate (mol/h) of the feed gas and the mole fraction of water vapor in the product gas.b) the mole fraction of water in the product gas is monitored and found to have the value calculated in part (a) for the first 10 hours of operation, but then it begins to increase. what is the most likely cause of the increase

B. Oxygen pulls electrons closer to itself than hydrogens, giving the oxygen a slight negative and hydrogens a slight positive charge.

Explanation:

In the water molecule (H2O), an oxygen atom is bonded to two hydrogen atoms. Oxygen atom is much more electronegative (has more attraction for electrons) than hydrogen atom, hence, it pulls electrons from one one of the hydrogen atoms bonded to it making it more negatively charged and the hydrogen atom, more positively charged.

The possession of positive charge (+) and negative charge (-) in the same molecule, caused by uneven flow of electrons is what it means to be DIPOLAR (from dipole). Hence, water is DIPOLAR because oxygen pulls electrons closer to itself than hydrogens, giving the oxygen a slight negative and hydrogens a slight positive charge.