0 Members and 1 Guest are viewing this topic.
Among the first atmospheric reactions to show a noticeable change in a global warming scenario might beNaCl + H2O [revarrow] NaOH + HCl
Quote from: damocles on 17/10/2011 15:42:21Among the first atmospheric reactions to show a noticeable change in a global warming scenario might beNaCl + H2O [revarrow] NaOH + HClAre you talking about free salt in the atmosphere? As far as I can tell, it is a minor atmospheric constituent once away from the coastlines.And, NaOH+HCl, is neutral, of course.The ocean salinity naturally varies somewhat with the major glacial cycles.The acidification of the oceans is a different reaction based on disolving carbon dioxide into the oceans.H2O + CO2 [revarrow] H2CO3 [revarrow] H+ + HCO3‾Keeping in mind that pH is a negative logarithmic scale, so very small changes in the H+ ion concentration can make significant changes in the pH.
If you make the reasonable assumption that there is water vapour present then thermodynamically, the oxygen and nitrogen should combine to make oxides on nitrogen which would dissolve in the water to make nitric acid.Fortunately for us this process is very slow.If you heat the air to a high temperature it happens to some extent. In fact the equilibrium is more favourable at low temperatures- but the reaction is even slower.I have heard (but never checked) that if you run air through an electric arc (which heats it to a very high temperature) then into a glass vessel you can see the yellow colour of the NO2 formed.