Which of the following variables does NOT relate to the ideal gas law?

Which of the following variables does NOT relate to the ideal gas law?

• A. Temperature
• B. Pressure
• C. Density
• D. Volume

Answer: (C)

The ideal gas law is a fundamental equation in thermodynamics that describes the relationships between pressure, volume, temperature, and the number of moles of an ideal gas. The equation is usually represented as PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the absolute temperature. In this context, temperature, pressure, and volume are directly included in the equation, representing fundamental characteristics essential to predicting the behavior of an ideal gas. However, density does not explicitly appear in the ideal gas law, although it can be derived from it. Density is defined as mass per unit volume (mass/volume). While it can be related to pressure and temperature for an ideal gas through the equation (density = (P*M)/(R*T), where M is the molar mass), it is not one of the primary variables in the ideal gas law itself. Therefore, density is the variable that does not directly relate to the ideal gas law in the same way that temperature, pressure, and volume do.

The ideal gas law is a fundamental equation in thermodynamics that describes the relationships between pressure, volume, temperature, and the number of moles of an ideal gas. The equation is usually represented as PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the absolute temperature.

In this context, temperature, pressure, and volume are directly included in the equation, representing fundamental characteristics essential to predicting the behavior of an ideal gas. However, density does not explicitly appear in the ideal gas law, although it can be derived from it.

Density is defined as mass per unit volume (mass/volume). While it can be related to pressure and temperature for an ideal gas through the equation (density = (PM)/(RT), where M is the molar mass), it is not one of the primary variables in the ideal gas law itself. Therefore, density is the variable that does not directly relate to the ideal gas law in the same way that temperature, pressure, and volume do.