PADI Divemaster Dive Theory questions with correct answers

Dalton's Law CORRECT ANSWER Law of partial pressures The proportion of the total pressure exerted by a gas mixture that an individual gas exerts is called PARTIAL PRESSURE Calculating Partial Pressure CORRECT ANSWER multiply the percent of that gas by the absolute pressure ex. P02 at 99 ft = .21 x 4 bar = .84 bar Henry's Law CORRECT ANSWER gas exchange law "the amount of gas that dissolves into a liquid at a given temperature is directly proportional to the partial pressure of that gas" What factors effect speed of gas dissolution in a liquid? CORRECT ANSWER 1) pressure of the gas 2) amount already dissolved in the liquid 3) solubility of the gas in the liquid 4) SA where the gas and liquid make contact hemoglobin CORRECT ANSWER protein that binds reversibly with oxygen in the lungs (found in RBCs)