What does the ideal gas law (PV=nRT) describe? The diffusion of gas molecules. The kinetic energy of particles. The behavior of real gases. The relationship among pressure volume , temperature, and moles.

The ideal gas law $(PV=nRT)$ describes the relationship among pressure, volume, temperature, and moles of a gas. It provides a mathematical equation that relates these four variables for an ideal gas. The ideal gas law is a fundamental equation in the study of physical chemistry and thermodynamics.<br /><br />The ideal gas law states that the pressure (P) of a gas multiplied by its volume (V) is equal to the number of moles (n) of the gas multiplied by the gas constant (R) and the temperature (T) of the gas in Kelvin. This equation assumes that the gas molecules do not interact with each other and occupy no volume themselves, which is an approximation that holds true for ideal gases.<br /><br />The ideal gas law is a simplified model that provides a good approximation for the behavior of real gases under certain conditions. However, it is important to note that the ideal gas law does not accurately describe the behavior of gases at high pressures or low temperatures, where deviations from ideal behavior become significant.<br /><br />In summary, the ideal gas law $(PV=nRT)$ describes the relationship among pressure, volume, temperature, and moles of a gas, providing a mathematical equation that relates these variables for an ideal gas.