The cylinder shown contains 0.79 moles of nitrogen,0.19 moles of oxygen and 0.02 moles carbon dioxide,a total of 1.00 mole of molecules in the approximate proportion in which they are present in air.Of the three gases,only carbon dioxide is appreciably soluble in the water in the well at the bottom.Assume an equilibrium between dissolved and undissolved carbon dioxide at the beginning and sufficient time lapse to reestablish that equilibrium after the change described. If 0.02 mole of carbon dioxide is forced into the cylinder,the solubility of carbon dioxide ...

Question

The cylinder shown contains 0.79 moles of nitrogen,0.19 moles of oxygen and 0.02 moles carbon dioxide,a total of 1.00 mole of molecules in the approximate proportion in which they are present in air.Of the three gases,only carbon dioxide is appreciably soluble in the water in the well at the bottom.Assume an equilibrium between dissolved and undissolved carbon dioxide at the beginning and sufficient time lapse to reestablish that equilibrium after the change described.  If 0.02 mole of carbon dioxide is forced into the cylinder,the solubility of carbon dioxide ...

Quizplus · Accepted Answer

Before the addition of 0.02 moles of carbon dioxide, the total number of moles of gas in the cylinder was 1.00 mole. After the addition, the total number of moles of gas is 1.02 moles. The partial pressure of carbon dioxide has increased from 0.02/1.00=0.02 to 0.04/1.02=0.0392. At equilibrium, the solubility of carbon dioxide is proportional to its partial pressure, so the solubility will increase by a factor of (0.0392/0.02) = 1.96, which is approximately 2. Therefore, the solubility of carbon dioxide increases by a factor of about 2.

The Cylinder Shown Contains 0