Answer:
(a) (i) Henry's law represents a
relation between solubility of gases in liquid and pressure. Scuba drivers when
comes towards surface, the pressure gradually decreases. This
reduce pressure releases the dissolve
gas present in blood and leads to formation of bubbles of nitrogen in the
blood.
This creates a painful condition
by blocking capillaries known as blends.
(ii) At high altitude
atmospheric pressure is low as compared to surface which causes difficulty in
breathing. On that condition we feel weakness and discomfort.
(b) Soda water bottle
kept at room temperature fizzes on opening due to different pressure inside and
outside the bottle. When the bottle is opened to air, the partial pressure of
CO2 above the solution decreases. As a result, solubility decreases
and hence CO2 bubbles out.
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