Open Question
Which of the following determines the direction of gas movement?a. solubility in water,b. partial pressure gradient,c. temperature,d. molecular weight and size of the gas molecule.
22. The Respiratory System
Law of Partial Pressure
Multiple Choice
Henry's law states that the total pressure exerted by a mixture of gases is the sum of the pressures exerted independently by each gas in the mixture.
A
True
B
False
Verified step by step guidance1
Understand the concept of Henry's Law: Henry's Law relates to the solubility of gases in liquids, stating that the amount of gas that dissolves in a liquid is proportional to the partial pressure of the gas above the liquid. It does not directly address the total pressure exerted by a mixture of gases.
Recognize the correct law: The statement given in the problem is actually describing Dalton's Law of Partial Pressures, which states that the total pressure exerted by a mixture of gases is the sum of the partial pressures of each individual gas in the mixture.
Differentiate between Henry's Law and Dalton's Law: Henry's Law is used to calculate the concentration of a gas in a liquid, while Dalton's Law is used to calculate the total pressure of a gas mixture.
Apply the correct law to the problem: Since the statement describes Dalton's Law, the correct answer to the problem is 'False' when considering Henry's Law.
Review the definitions: Ensure you understand the definitions and applications of both Henry's Law and Dalton's Law to avoid confusion in future problems.
Related Videos
Related Practice
