Which relationship is described by the ideal gas law?

The ideal gas law is represented by the equation PV = nRT, where P is pressure, V is volume, n is the number of moles of gas, R is the ideal gas constant, and T is temperature. This law captures the relationship between these four key properties of gases, indicating that they are interrelated. Specifically, changes in one variable (like temperature or volume) will affect the others when the number of moles remains constant.

Understanding this relationship is crucial for predicting how a gas will behave under different conditions. For instance, if the temperature of a gas increases while the number of moles and volume are kept constant, the pressure of the gas must increase as well. Thus, recognizing that pressure, volume, temperature, and the number of moles are interconnected is fundamental to the study of gas behavior in chemistry. This principle underpins various applications and scenarios in chemistry, such as calculating changes in conditions for gases in reactions or processes.