2. Solutions Class 12 Chemistry Chapter 2 Solutions, Class 12 Chemistry | Page 17

Applications of Henry ’ s law
= 0.0987 / 0.0035 bar = 282 bar
Applications of Henry ’ s law
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Sealing of soft drink bottles at high pressure increases the solubility of CO2 in soft drinks and soda water .
When a diver goes underwater his body is subjected to high pressure . Due to this the body tissues absorbs more gases . The breathed in oxygen is required for cellular respiration to provide energy to the diver . But the nitrogen gets absorbed into the body tissues .
The pressure increases with the increase in depth . Therefore as the diver approaches the bottom of the water body the pressure increases . With this increase in pressure more nitrogen gets absorbed by the body tissues .
But as he approaches upward to come out of the water body the pressure starts decreasing with the decrease in depth . This in turn decreases the amount of nitrogen getting absorbed by the body tissues .
This causes bubbles of nitrogen in the body which in turn causes bends in the body of the diver .
They are difficult and can even cause threat to their life . To protect the divers from such situation the water utilized by scuba jumpers are loaded with diluted air containing 11.7 % helium , 56.2 % nitrogen and 32.1 % oxygen .
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At high heights the fractional weight of oxygen is not as much as that at the ground level . This stimulates low concentrations of oxygen in the blood and tissues of individuals living at high heights or climbers . Low blood oxygen causes climbers to feel feeble and not able to think plainly , indications of a condition known as anoxia .