Densidade Gás Ideal
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
About this calculator
The Ideal Gas Density Calculator is an online tool that allows you to calculate the density of an ideal gas based on its molar mass, pressure, and temperature. The density of a gas is an important property in various fields, such as chemical engineering, physics, and environmental science.
The formula used is ρ = PM/(RT), where ρ is the density of the gas, P is the pressure, M is the molar mass, R is the gas constant, and T is the temperature in Kelvin. This equation is derived from the ideal gas law and is widely used to calculate the density of gases under specific conditions.
It is essential to use this calculator in cases where the pressure and temperature are known, and the gas can be considered ideal, meaning its behavior is close to that of a perfect gas. Additionally, it is crucial to pay attention to the units used, ensuring they are consistent with the International System of Units.
By using the Ideal Gas Density Calculator, you can obtain accurate and rapid results, which is particularly useful in situations where repetitive or real-time calculations are required.
Frequently asked questions
What is an ideal gas?
An ideal gas is a hypothetical gas that obeys the ideal gas law, with point-like molecules and no intermolecular interactions.
What units should I use in the calculator?
It is recommended to use International System of Units, such as pascal (Pa) for pressure, kelvin (K) for temperature, and kilogram per mole (kg/mol) for molar mass.
Is the calculator suitable for real gases?
The calculator is based on the ideal gas law, so it is more accurate for gases that approach ideal behavior. For real gases, additional corrections may be necessary.
How to interpret the density result?
The density result is expressed in kilogram per cubic meter (kg/m³) and represents the mass of gas per unit volume under specific conditions of pressure and temperature.
What precautions should I take when using the calculator?
Verify that the units are correct and that the gas can be considered ideal. Also, ensure that the pressure and temperature values are accurate and realistic.