# ideal gas constant

Ideal Gas Behavior » The Ideal Gas Law is a simple equation demonstrating the relationship between temperature, pressure, and volume for gases. These specific relationships stem from Charles’s Law, Boyle’s Law, and Gay-Lussac’s Law. Charles’s Law identifies the direct proportionality between volume and temperature at constant pressure, Boyle’s Law identifies the inverse proportionality of pressure and volume at a constant temperature, and Gay-Lussac’s Law identifies the direct proportionality of pressure and temperature at constant volume. Combined, these form the Ideal Gas Law equation: PV = NRT. P is the pressure, V is the volume, N is the number of moles of gas, R is the universal gas constant, and T is the absolute temperature. Ncbi.nlm.nih.gov

Boltzmann Constant Definition and Units » Learn about the Boltzmann constant. Get units and see how it relates to Avogadro's number, Planck's constant, and the ideal gas law. Sciencenotes.org

Generalization of Eight Methods for Determining R in the Ideal Gas Law » The ideal gas law of physics and chemistry says that PV = nRT. This law is a statement of the relationship between four variables (P, V, n, and T) that reflect properties of a quantity of gas in a container. The law enables us to make accurate predictions of the value of any one of the four variables from the values of the other three. The symbol R (called the "molar gas constant") is the sole parameter or constant of the law. R stands for a fixed number that has been shown through experiments to equal approximately 8.314472. Eight methods are available to analyze the data from a relevant experiment to determine the value of R. These methods are specific instances of eight general methods that scientists use to determine the value(s) of the parameter(s) of a model equation of a relationship between variables. Parameter estimation is one step in the study of a relationship between variables. Arxiv.org