Homework Answers
The given reaction is 2NO(g) + O2(g) ----------> 2NO2(g)
Ds0rxn = DS0 products - Ds0 reactants
= 2*DS0 NO2(g) -[ 2*Ds0 NO +
Ds0 O2(g)
= 2*240.1-(2*210.8+205.1)
= -146.5 J/K-mole.
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