Gas solubility and breathing

We inhale about 500 cm of air with each breath we take. The influx of air is a result of changes in volume of the lungs as the diaphragm is depressed and the chest expands, which results in a decrease in pressure of about 100 Pa 

A note on good practice It is meaningless to take logarithms of quantities with units, so always ensure that the X of In X is a pure munber. 

A hyperbaric oxygen chamber, in which oxygen is at Ui elevated pcuTicd pressure, is used to treat certain types of disease. Ccubon monoxide poisoning can be treated in this way, as can the consequences of shock Diseases that are caused by anaerobic bacteria, such as gas gangrene and tetanus, can also be treated because the bacteria cannot thrive in high oxygen concentrations. 

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