Which equation represents the Ideal Gas Law?

The equation representing the Ideal Gas Law is indeed PV = nRT. This equation describes the relationship between pressure (P), volume (V), the number of moles of gas (n), the ideal gas constant (R), and temperature (T) in kelvins.

In this equation, pressure is directly proportional to the number of gas molecules and temperature, while it is inversely proportional to volume. This means that if the temperature or the amount of gas increases, the pressure will also increase if the volume is held constant. Conversely, if the volume decreases while the amount of gas and temperature remain constant, the pressure will increase.

The ideal gas law combines several earlier gas laws, providing a comprehensive framework for understanding the behavior of ideal gases under various conditions. It is essential because it allows for calculation of one of these properties when the others are known, making it a powerful tool in both theoretical and practical applications in chemistry.