Where does sulfur dioxide come from?(Acid rain)

  • 3 votes

Is it when coal is burnt or fossil fuels? :/

Posted Mon 30th May, 2011 @ 17:27 by Anon
Edited by Anon on Mon 30th May, 2011 @ 17:34

11 Answers

  • 4 votes

When you burn fossil fuels.

Coal is a form of fossil fuel.

You get sulfur dioxide from the burnt coal, which rises into the air, mixes with clouds, and finally causes acid rain clouds.

It then rains with acidic water. Understood?

Answered Mon 30th May, 2011 @ 17:39 by Al
  • 4 votes

Sulfur dioxide is produced when fuels that contain sulfur compounds burn. So this includes crude oil, and coal - fossil fuels :) 

Answered Mon 30th May, 2011 @ 17:39 by Edward Pinches
  • 2 votes

chris, 'burning coal may..'i  think it defnitley does?

Answered Mon 30th May, 2011 @ 17:47 by Anon
  • 1 vote

thanks both good answers

Answered Mon 30th May, 2011 @ 17:43 by Anon
  • 1 vote

Also, coal MAY not contain sulfur. If there is no sulfur then there won't be sulfur dioxide.

Answered Mon 30th May, 2011 @ 17:52 by Chris
Edited by Chris on Mon 30th May, 2011 @ 17:53
  • 1 vote

Now you've just confused me!

Answered Tue 31st May, 2011 @ 18:04 by Anon
  • 1 vote

fossil fuels contian sulphur impurities and when they combust they release sulphur which reacts with oxygen to form sulphur dioxide.

Answered Mon 6th June, 2011 @ 20:56 by Alex Price
  • 0 votes

Coal is one form of a fossil fuel. Burning coal may produce sulfur dioxide. Sulfur dioxide DISSOLVES in clouds/rainwater, then falls as what we know as 'Acid Rain'.

Answered Mon 30th May, 2011 @ 17:44 by Chris
Edited by Chris on Mon 30th May, 2011 @ 17:44
  • 0 votes

sulphur dioxide comes from the likes of car exhausts. a harmful effect is that it is poisonous. we can prevent this by using our cars less.  

Answered Wed 24th August, 2011 @ 16:59 by Rachel Potter
  • 0 votes

Metals generally occur as oxide or sulphide ores.

Process of extraction for metals is reduction.

Reduction reactions are endothermic.

Oxide ores can be reduced to metals directly but sulphide ores must be reduced to oxides then to metals.

When the sulphide ores are reduced to oxide ores, sulphur dioxide is produced which can react to form acid rain.

SO2 (g) + H2O (l) --> H2SO3 (aq)

2SO2 (g) + O2 (g) --> 2SO3 (g)

SO3 (g) +H2O (l) --> H2SO4 (aq)     <-- Acid Rain (Sulphuric Acid) [Very dilute]

Answered Thu 15th September, 2011 @ 22:49 by Alice Clare
Edited by Alice Clare on Thu 15th September, 2011 @ 22:51
  • -3 votes

Amrit, he uses 'may' because he is referring to coal being burnt with oxygen in normal air- O2

rather than pure oxygen- O

Hence, Coal + O2 = sulphur Dioxide

Whereas Coal + O = Sulphur Oxide

Answered Mon 30th May, 2011 @ 17:50 by Al
Edited by Al on Mon 30th May, 2011 @ 17:51