chemical reactions releasing sulfur dioxide (1 Viewer)

[SalButtsworth]

does anyone know and chemical reactions that release sulfur dioxide or oxides of nitrogen and their equations..

obviously there is the usuall ones of extracting sulfur from metals but wat about combustion of fossil fuels??

 

[sinophile]

does anyone know and chemical reactions that release sulfur dioxide or oxides of nitrogen and their equations..

obviously there is the usuall ones of extracting sulfur from metals but wat about combustion of fossil fuels??

You are correct, one of the main SO2 producers is from smelting sulfide ores.

As for fossil fuels, the sulfur is usually chemically bonded to the hydrocarbon itself. So there is no specific equation, and chances are they won't ask you for it. iirc, conquering chemistry states it like this:

S(in compounds) + O2>>>>>>>SO2.

As for nitrogen compounds, I assume you have access to the Conquering Chemistry textbook? They have the exact equations you seek in there, so look it up.

 

[Spark_Coaching]

Sulfur Dioxide:

1. When organic matter decomposes it produces hydrogen sulfide (H<SUB>2</SUB>S), which then oxidises (reacts with oxygen) to produce sulfur dioxide:
2H<SUB>2</SUB>S<SUB> (g)</SUB> + 3O<SUB>2 (g) --> </SUB>2SO<SUB>2 (g)</SUB> + 2H<SUB>2</SUB>O <SUB>(l)</SUB>
<SUB>2. The burning of sulfur-rich coal and other fossil fuels directly combines sulfur with oxygen:</SUB>

<?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o> S<SUB> (s)</SUB> + O<SUB>2 (g) --> </SUB>SO<SUB>2 (g)</SUB></o>​

<o><SUB>3. The extraction of metals from metal sulfides also releases sulfur dioxide E.g. smelting of galena for lead:</SUB>
2PbS<SUB> (s)</SUB> + 3O<SUB>2 (g) --> </SUB>2PbO<SUB> (s)</SUB> + 2SO<SUB>2</SUB>
<SUB>Oxides of Nitrogen:</SUB>
<SUB></SUB>
<SUB>1. Nitric oxide is produced either when lightning, with its high temperatures combines nitrogen and oxygen:</SUB>
N<SUB>2 (g)</SUB> + O<SUB>2 (g) --> </SUB>2NO<SUB> (g)</SUB>
<SUB>2. The same reaction occurs in the high temperatures of engines or power plants, also combining nitrogen and oxygen.</SUB>
<SUB>3. Nitrogen dioxide is formed when nitric oxide reacts with oxygen in the air:</SUB>

<o> 2NO<SUB> (g)</SUB> + O<SUB>2 (g) --> </SUB>NO<SUB>2 (g)</SUB></o>​

</o>

 

[fullonoob]

N2O also in fertilisers (organic matter). NO combustion of engines.
CO2 respiration. SO2 = volcanoes and metal extraction