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Calculate ΔS?rxn for the reaction 2NO(g)+O2(g)→2NO2(g) Substance S? (J/mol⋅K) NO2 240
Calculate ΔS?rxn for the reaction 2NO(g)+O2(g)→2NO2(g)
| Substance | S? (J/mol⋅K) |
| NO2 | 240.0 |
| O2 | 205.2 |
| NO | 210.8 |
Expert Solution
?S?rxn = ?S?products - ?S? reactants
= (2 x 240) - (2 x 210.8 + 205.2)
= - 146.8 J/K mol
?S?rxn = - 146.8 J/K mol
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