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=====Introduction===== | =====Introduction===== | ||
- | Dissolved oxygen probes provide a convenient approach to essentially | + | Dissolved oxygen probes provide a convenient approach to an essential |
=====Solubilisation of oxygen from the atmosphere into water===== | =====Solubilisation of oxygen from the atmosphere into water===== | ||
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The solubility of oxygen in water is achieved by physical solution which does not involve chemical interaction between the compounds. The solubility equilibrium is a function of the following factors: | The solubility of oxygen in water is achieved by physical solution which does not involve chemical interaction between the compounds. The solubility equilibrium is a function of the following factors: | ||
- | //•the concentration of oxygen in the gas phase at the water-atmosphere interface// | + | * //the concentration of oxygen in the gas phase at the water-atmosphere interface// |
- | + | | |
- | //•the attractive molecular forces between water molecules and oxygen molecules// | + | |
- | + | ||
- | //•the kinetic energy of the water and oxygen molecules.// | + | |
Physical changes in temperature and pressure have a pronounced effect on the solubility factors. | Physical changes in temperature and pressure have a pronounced effect on the solubility factors. |