SCIENCE
ZOOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a 20-30 times
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b 20-25 times
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Either A or B
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None of the above
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Detailed explanation-1: -The molecular arrangement of carbon dioxide makes it more soluble in blood compared to the solubility of oxygen. The solubility of carbon dioxide is 20-25 times higher than oxygen. Thus, higher the solubility higher will be the rate of diffusion.
Detailed explanation-2: -As the solubility of CO2 is 20-25 times higher than that of O2, the amount of CO2 that can diffuse through the diffusion membrane per unit difference in partial pressure is much higher compared to that of O2.
Detailed explanation-3: -That is because CO2 will react with water in equilibrium to form H2CO3, which is an acid and thus will dissociate to form ions that can easily fit in the polar solvent (i.e. water). O2 on the other hand does not react with water because it is not a very good electrophile in comparison to CO2.
Detailed explanation-4: -Carbon dioxide is more soluble in water as compared to oxygen gas. Some fraction of carbon dissolved forms carbonic acid with water and it is readily dissolvable because of formation of strong hydrogen bonds.
Detailed explanation-5: -Carbon dioxide is 20 times more soluble than oxygen; it obeys Henry’s law, which states that the number of molecules in solution is pro-portional to the partial pressure at the liquid surface.