Atmospheric pressure at the top of Mount Everest is about 150 mmHg that’s why climbers always bring oxygen tanks if a climber carries a 15.0 L tank with a pressure of 35, 000 mmHg what volume of the gas occupy if it is released at the top of Mount Everest

Basically you are asking for the change in volume if the pressure changes from 30400 mm Hg to 150 mm Hg

Assuming the pressures are absolute and the temperature is constant, the pressure ratio is 30400/150 = 203

so the volume is 203 x 10 L = 2030 L

Explanation:

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