\[\frac{V_1}{T_1}=\frac{V_2}{T_2}\]
Variables
V1initial gas volume
T1initial absolute temperature (K)
V2final gas volume
T2final absolute temperature (K)
Description
What is this formula?
The Gas Volume Temperature Correction is based on Charles's Law. It describes how the volume of a gas changes with temperature when pressure and the amount of gas remain constant.
When to use it
Use this formula when correcting gas volumes measured at different temperatures, performing respiratory physiology calculations, or converting laboratory gas measurements to standard conditions.
Example
Data:
V1 = 2.0 L
T1 = 293 K
T2 = 310 K
Formula:
V2 = (V1 × T2)/T1
Substitution:
V2 = (2.0 × 310)/293
V2 = 2.12 L
Result:
V2 ≈ 2.12 L
Applications
- Pulmonary function testing
- Respiratory physiology
- Blood gas analysis
- Laboratory gas measurements
- Medical gas storage