An average person’s lungs contain about 5L of gas under normal (atmospheric) conditions. If a diver makes a free dive (no SCUBA gear and does not exhale), the volume of the lungs is compressed due to increased pressure beneath the water. If compression occurs below 1L, irreversible lung damage will occur. Calculate the maximum safe depth for a free dive in sea water. Assume the densities of sea water and fresh water are the same and that there is no significant temperature change from the surface of the water (atmosphere) to the free dive depth.

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Basic Chemical Calculations (Process and Variables)

A basic chemical calculation involves the application of the law of chemical proportions to various reactions and material and energy balance calculations on various chemical processes. Basic chemical calculation helps students analyze various chemical processes and develop problem-solving skills. The chemical manufacturing processes are divided into unit operations involving physical changes of material and unit processes involving the chemical transformation of materials. For instance, fluid flow, heat transfer, and mass transfer are unit operations, and oxidation, reduction, and pyrolysis are unit processes.