Calculate the entropy change for the following reactions, using the tabulated standard molar entropies.   2NO(g)   +   O2(g)   →   2NO2(g) S° NO(g) = 210.7 J/mol.K     S° O2(g) = 205.0 J/mol.K   S° NO2(g) = 240.0 J/mol.K

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