MadSci Network: Chemistry
Query:

Re: Does temperature have any effect on dissolved oxy?

Area: Chemistry
Posted By: Enrico Uva, Secondary School Teacher Chemistry, Physical Science, La Pietra Hawaii School
Date: Fri Jan 10 20:38:52 1997
Message ID: 850618345.Ch


Hi Jacob,

You did not mention how your experiment was carried out. According to tables in the literature, at 101.3 kPa, the solubility of O2 in water decreases from 2.0 X 10-3 moles per litre at 4 o C to 1.2 X 10-3 moles per litre at 30 oC.

If water did not start losing its oxygen before 37 C,it would be nice. There would be no thermal pollution problem for fresh water ecosystems

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