Anesthesia Technologist Practice Exam

What law describes the relationship between pressure and volume of gases?

1. Charles's Law

2. Boyle's Law

3. Gay-Lussac's Law

4. Avogadro's Law

The correct answer is: Boyle's Law

Boyle's Law describes the relationship between the pressure and volume of gases, stating that at a constant temperature, the pressure of a gas is inversely proportional to its volume. This means that as the volume of a gas increases, its pressure decreases, and vice versa, provided the temperature remains unchanged. This fundamental principle is crucial in various applications, including anesthesia and respiratory physiology, as it helps to understand how gases behave under different conditions during medical procedures. The other laws mentioned focus on different relationships: Charles's Law pertains to the relationship between volume and temperature, Gay-Lussac's Law deals with the relationship between pressure and temperature, while Avogadro's Law describes the relationship between the number of molecules and volume. Understanding Boyle's Law is essential for managing ventilation and gas delivery in clinical settings, emphasizing its importance in anesthesia practice.