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May 27, 2015

Homework Help: Chemistry

Posted by Erika on Wednesday, April 6, 2011 at 11:58am.

Sulfur burns in oxygen in two steps:
i.S(s) + O2(g) ->SO2(g) change of Heat=-297kJ
ii. 2SO2(g) + O2(g)->2SO3(g) change of heat=-198kJ

Calculate the total heat released if this is the final reaction: 2S(s) + 3O2(g)->2SO3(g)

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