Extrapolação Linear Gases (V×T)
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
About this calculator
The Linear Extrapolation of Gases calculator allows you to find the volume or temperature of a gas when the other is known, maintaining the V/T constant relationship. This is based on Charles' Law, which states that at constant pressure, the volume of a gas is directly proportional to its absolute temperature. The formula used is V1 / T1 = V2 / T2, where V1 and T1 are the initial volume and temperature, and V2 and T2 are the final volume and temperature.
This calculator is useful in situations where it is necessary to predict the behavior of gases under different temperature and volume conditions. For example, in chemical laboratories, when working with gases at different temperatures, or in industrial processes involving gas handling. Linear extrapolation helps to understand how the volume of a gas will change if the temperature is altered, keeping the pressure constant.
When using this calculator, it is essential to be careful with the units of measurement. Volume must be entered in units of volume (such as liters or cubic meters) and temperature in Kelvin. Conversion to Kelvin is crucial to ensure the accuracy of calculations, as Charles' Law is only valid at absolute temperatures.
Remember that Charles' Law assumes ideal conditions, i.e., gases that behave perfectly. In practice, real gases may deviate slightly from this behavior due to factors such as intermolecular interactions and molecular size. However, for many practical purposes, the approximation is sufficiently accurate.
Frequently asked questions
What units of measurement are required to use the calculator?
Volume must be entered in units of volume (such as liters or cubic meters) and temperature in Kelvin.
Can I use this calculator for real gases?
Yes, but keep in mind that real gases may deviate slightly from ideal behavior due to factors such as intermolecular interactions and molecular size.
Is Charles' Law valid for all temperatures?
No, Charles' Law is only valid at absolute temperatures, i.e., in Kelvin.
How do I convert temperature to Kelvin?
Add 273.15 to the temperature in degrees Celsius. For example, 20°C is equal to 293.15 K.
Can this calculator be used for any gas?
The calculator is based on Charles' Law, which applies to ideal gases. For real gases, the approximation may be sufficiently accurate for many practical purposes.