What is the ideal gas law equation?

The ideal gas law equation is represented as PV = nRT, where P stands for pressure, V represents volume, n is the number of moles of the gas, R is the ideal gas constant, and T signifies the absolute temperature in Kelvin. This equation describes the relationship between these variables for an ideal gas, allowing for predictions about how gases behave under varying conditions.

The ideal gas law combines several earlier gas laws, including Boyle's Law, Charles's Law, and Avogadro's Law, into one comprehensive equation. This makes it incredibly useful in HVAC applications where understanding the behavior of gases under different temperatures and pressures is crucial.

In practical terms, it means that if you know any three of the variables (pressure, volume, number of moles, temperature), you can easily calculate the fourth variable. For instance, if the pressure and temperature of a gas in a system change, you can adjust volume or number of moles accordingly to maintain system efficiency.

The other options deviate from the standard ideal gas law framework and don't align with the established scientific relationships necessary for accurate calculations in gas behavior. Thus, the equation PV = nRT stands as the foundational basis for analyzing the physical properties of gases and is essential knowledge for those working