Ideal gas equation: The ideal gas law

The ideal gas law, also called the general gas equation, is the equation of state of a hypothetical ideal gas. It is a good approximation of the behavior of many gases under many conditions, although it has several limitations. The Ideal Gas Equation describes the state of hypothetical ideal gases through a combination of empirical and physical constants, and is also known as the general gas equation. The relationship between volume, pressure, temperature and quantity of a gas, including definition of gas density. In a perfect or ideal gas the correlations between pressure, volume, temperature and quantity of gas can be expressed by the Ideal Gas Law. What is Ideal Gas Law? The ideal gas law, also known as the general gas equation, is an equation of the state of a hypothetical ideal gas. Although the ideal gas law has several limitations, it is a good approximation of the behaviour of many gases under many conditions.