(SHOW CALCULATIONS) Use Hess's Law to calculate the enthalpy change for the reaction 1/8 Sg(s) + O₂(g) →SO₂(g) AHxn = ? from the following data: 2 SO₂(g) + O₂(g) →→→ 2 SO3(g) ΔΗ = - 196 kJ 1/4 Sg(s) + 3 O₂(g) →→→ 2 SO3(g) ΔΗ = -790 kJ

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