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Christopher
Christopher asked in Science & MathematicsChemistry · 4 years ago

oxygen________chemistry problem?

Ordinary air from the atmosphere contains about 21percent of oxygen whereas the proportion of oxygen in the mixture released by boiling river water is about 30percent.The best explanation of the increase in the percentage of oxygen is that___________

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  • Dr W
    Lv 7
    4 years ago

    liquid water dissolves O2 gas. But the solubility decreases as temperature increases. So as you warm the water, dissolved O2 is released increasing the partial pressure of O2 over the liquid from 21% to 30%

    http://docs.engineeringtoolbox.com/documents/841/o...

  • Roger the Mole
    Lv 7
    4 years ago

    ... oxygen is more soluble in water than other atmospheric gases.

  • hcbiochem
    Lv 7
    4 years ago

    Photosynthetic organisms in the water release oxygen which raises the amount of oxygen in the water.

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