Flight Paramedic Certification Practice Exam 2025 – Complete Study Guide

Gay-Lussac's Law is the appropriate choice for predicting changes in pressure resulting from temperature fluctuations. According to this law, the pressure of a gas is directly proportional to its absolute temperature when the volume remains constant. This means that if the temperature of a gas increases, the pressure also increases, provided that the volume does not change. Conversely, if the temperature decreases, the pressure will decrease as well.

This relationship is crucial in various applications, especially in emergency medical services, where changes in temperature can affect the performance of gases in medical equipment. For instance, if the temperature of a gas in a pressurized cylinder rises, the increase in pressure could result in dangerous situations if not properly managed. Understanding this law allows flight paramedics to anticipate potential risks related to temperature changes and make informed decisions regarding the use of gas-containing devices in varying conditions.

Boyle's Law, in contrast, deals with the inverse relationship between pressure and volume at a constant temperature, while Charles's Law addresses the direct relationship between volume and temperature, and Dalton's Law pertains to the total pressure exerted by a mixture of gases. These laws describe different aspects of gas behavior but do not specifically focus on the connection between pressure and temperature as directly as Gay-Lussac's