select species to plot:

This simulation calculates the mole fractions of gases dissolved in water. Check "set temperature" to display mole fractions in a bar graph and set the temperature with a slider. Uncheck "set temperature" to plot mole fractions as a function of temperature and hover the cursor over a curve to see which gas it corresponds to. Only the gases whose boxes are checked are displayed. The mole fractions are calculated independently for each gas at the gas pressure (set with a slider).

Henry's constant \( H \) varies with temperature, as given by:

\[ H = \frac{1}{\exp\left(A + \frac{B}{T} + C\ln T + DT\right)} \]

where \( H \) is in bar; \( A, B, C \) and \( D \) are constants specific to each species; and \( T \) is temperature (K).

Henry's law is used to calculate the mole fraction \( x \) of a species dissolved in water:

\[ xH = P, \]

where \( P \) is the partial pressure (bar).

This simulation was created in the Department of Chemical and Biological Engineering, at University of Colorado Boulder for LearnChemE.com by Abijuth Trichar Ramachandran and Vladislav Denisenkov under the direction of Professor John L. Falconer. Address any questions or comments to learncheme@gmail.com. All of our simulations are open source, and are available on our LearnChemE Github repository.

If this simulation is too big for your screen, zoom out using + on Mac or + on Windows. To zoom in, use + on Mac or + on Windows.