What Would the Partial Pressure of Oxygen Equal in an Air

question 26

Multiple Choice

What would the partial pressure of oxygen equal in an air mixture at a depth of 99 feet under water?

• A) 159 x 2 or 318 mm Hg
• B) 159 x 4 or 636 mm Hg
• C) 159 mm Hg
• D) 159 x 3 or 477 mm Hg

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Definitions:

Molecules

The smallest unit of a chemical compound that can take part in a chemical reaction, consisting of two or more atoms bonded together.

Energy Density

The number of calories in a specific weight of food, indicating how energy-dense food is. Foods with high energy density have more calories per gram, while those with low energy density have fewer calories.

Nutrient Density

A measure of the nutrients provided by a food relative to its calorie content, emphasizing foods that are rich in vitamins, minerals, and other beneficial components with fewer calories.

Kilocalorie

A unit of energy often used in nutrition to quantify the energy content in food, equivalent to 1,000 calories.