CO2 Pressure Formula: Determine Pressure at Any Temperature

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SUMMARY

The formula to determine the pressure of CO2 in a bottle while liquid is present is expressed as p = 4.51Te, where p represents pressure in psi, T is the temperature in Fahrenheit, and 4.51 is a constant. The variable e is related to the expansion rate, although its exact definition remains unclear. For accurate calculations of vapor pressure in CO2, the Clausius-Clapeyron relation is recommended as a foundational concept.

PREREQUISITES
  • Understanding of the Clausius-Clapeyron relation
  • Familiarity with pressure and temperature units (psi and Fahrenheit)
  • Basic knowledge of gas laws and thermodynamics
  • Mathematical skills for applying formulas
NEXT STEPS
  • Research the Clausius-Clapeyron relation in detail
  • Explore CO2 Dynamics charts for practical applications
  • Learn about the properties of gases under varying temperatures
  • Investigate the concept of vapor pressure and its calculations
USEFUL FOR

This discussion is beneficial for chemists, engineers, and anyone involved in the handling or study of gases, particularly those working with CO2 in various applications.

Hubb
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I'm trying to figure a formula to determine what the pressure is in a CO2 bottle, while the liquid is still present. I am familiar with a CO2 Dynamics chart, but would like to know what the pressure would be at any temperature.

So far, what I have found through numerous hours of searching and calculating is this:

p = 4.51Te
where p is the pressure in psi
4.51 is a math constant
T is the temperature in Fahrenheit
and e is unknown (I believe it to be the expansion rate relative to the temperature but am not sure).

Any help would be appreciated

warpig.com/paintball/technical/gasses/co2pv.gif
 
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What I was asking above was vapor pressure. Can anyone help with a formula to calculate the vapor pressure in CO2 (or anything for that matter)?
 
Google Clausius-Clapeyron relation.
 

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