Carbon Dioxide Sublimation and Dissolution Equilibria

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In this Demonstration, you can manipulate the number of moles of () and the temperature (°C) to visualize both the equilibria of sublimation of solid and the dissolution of gaseous into aqueous solution. In the graphic, the left cylinder shows the sublimation of , beginning with solid . The equilibrium depends on the number of moles and the temperature. In the right cylinder, the dissolution of gaseous depends both on the Henry's law constant and the ideal gas law (). On the right is a bar graph comparing the values of , the reaction quotient, and , the equilibrium constant. will change as the molar concentration of carbon dioxide changes, while will only change with temperature. The visual comparison of and shows the direction of the reaction. If is smaller than , the forward reaction is favored, while if is larger than , the reverse reaction is favored.

Contributed by: Nathan Lwo and Kara McConaghy (March 2017)
Open content licensed under CC BY-NC-SA


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Reference

[1] NIST. "Carbon Dioxide." (Mar 27, 2017) webbook.nist.gov/cgi/cbook.cgi?ID=C124389&Mask=10.



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