Fugacities in a Can of Soda
Fugacities in a Can of Soda
The fugacities of water and carbon dioxide are calculated as a function of temperature for a closed container modeled by a can of soda. The concentrations of the two components are calculated in both the liquid and the gas phases. As the temperature increases, the pressure increases, and therefore the fugacities increase. Note that the concentration is much lower than the O concentration in the liquid phase, but the concentration is much higher than the O concentration in the gas phase. Correspondingly, the fugacity is much higher than O fugacity. As the temperature increases, the pressure increases. Higher temperatures decrease the concentration in water, but higher pressures increase the concentration in water, so the net effect is that the concentration in the liquid phase does not change much.
CO
2
H
2
CO
2
H
2
CO
2
H
2
CO
2
CO
2
CO
2