A snorkeler takes a deep breath at the surface, filling his lungs wit 4.0 L of air. He then descends to a depth of 5.0 m, where the pressure is 0.50 atm higher than at the surface. At this depth, what is the volume of air in the snorkeler’s lungs? [

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A: (a)

Variation of pressure

From the equation of pressure, pressure is directly proportional to the applied force.