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posted by  jays4days on 4/12/2008 11:40:43 PM  |  status: Closed  

Calculating G°rxn from Enthalpy and Entropy Values please help me

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General Chemistry N/A N/A N/A
Question Details:
Determine the standard free energy at 298 K for the reaction 2 NO(g) + O2(g) 2 NO2(g).
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posted by tee#1 on 4/13/2008 12:07:02 AM  |  status: Live
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jays4days's comment:
"Thanks but the value that you calculated wasnt correct but looking at your work, i got the right answer"
Response Details:
 
ΔGrxn= Σ n ΔGf products -Σ n ΔGf reactants
 
a) ΔGrxn = 2 ΔGf NO(g) - [ΔG N2(g) + 02(g) ]
              =2(86.57 kJ/mol) -[0+0] = +173.1 kJ/mol for the rxn as written
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