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Problem At 298 K 298\,\text{K} 298 K 2 S O 2 ( g ) + O 2 ( g ) → 2 S O 3 ( g ) \mathrm{2\,SO_2(g)+O_2(g)\;\rightarrow\;2\,SO_3(g)} 2 S O 2 ( g ) + O 2 ( g ) → 2 S O 3 ( g ) Δ S rxn ∘ = − 188 J mol − 1 K − 1 \Delta S^{\circ}_{\text{rxn}} = -188\;\text{J\,mol}^{-1}\,\text{K}^{-1} Δ S rxn ∘ = − 188 J mol − 1 K − 1 S ∘ ( S O 2 ( g ) ) = 248 J mol − 1 K − 1 \displaystyle S^{\circ}\!(\mathrm{SO_2(g)}) = 248\;\text{J\,mol}^{-1}\,\text{K}^{-1} S ∘ ( S O 2 ( g ) ) = 248 J mol − 1 K − 1 S ∘ ( O 2 ( g ) ) = 205 J mol − 1 K − 1 S^{\circ}\!(\mathrm{O_2(g)}) = 205\;\text{J\,mol}^{-1}\,\text{K}^{-1} S ∘ ( O 2 ( g ) ) = 205 J mol − 1 K − 1 S ∘ ( S O 3 ( g ) ) S^{\circ}\!(\mathrm{SO_3(g)}) S ∘ ( S O 3 ( g ) ) 298 K 298\,\text{K} 298 K Browse the problem library