The Ideal Gas Law

The Ideal Gas Law describes how a gas’s pressure, volume, temperature, and amount (moles) are related. Mathematically, it’s written as PV = nRT, where P is pressure, V is volume, n is the number of moles, R is a constant, and T is temperature in Kelvin. This law helps predict gas behavior: increasing temperature or the amount of gas increases pressure or volume, while increasing volume or decreasing temperature reduces pressure. It works best for gases at low pressure and high temperature, where they behave most like ideal gases with minimally interacting particles.