Homework Help: chemistry

Posted by rame on Tuesday, April 24, 2012 at 11:06pm.

given the following data:
S(s)+3/2 O2(g)->SO3(g) H=-395.2 kj
2SO2(g)+ O2(g)->2SO3(g) H=-198.2kj

calculate H for the reaction
S(s)+ O2(g)->SO2(g)

chemistry - DrBob222, Tuesday, April 24, 2012 at 11:21pm
Use equation 1 as written.
Take 1/2 equation 2 and reverse it, then add to #1. Add dH for 1 to 1/2 of -dH for 2.

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