Which gas law would apply when analyzing an isothermal process?

In an isothermal process, the temperature of the system remains constant while other variables like pressure and volume change. Boyle's Law is most relevant here because it describes the relationship between the pressure and volume of an ideal gas at constant temperature. Specifically, Boyle’s Law states that the pressure of a given mass of gas is inversely proportional to its volume when temperature is held constant. This means that if the volume of the gas increases, its pressure decreases, and vice versa, provided the temperature does not change.

This law is foundational when dealing with processes where heat exchange occurs without a change in temperature, making it directly applicable in scenarios involving isothermal processes. Understanding Boyle's Law allows technicians to predict how changes in one variable will affect another in systems like air conditioning, where maintaining a constant temperature is crucial for efficiency and functionality.