Problem: For the following reaction 2H2S (g) + 3O2 (g) → 2H2O (l) + 2SO2 (g) Calculate ΔH° from the given data. Is the reaction exothermic or endothermic? ΔH°f (H2S) = -20.15 kJ/mol; ΔH°f (O2) = 0 kJ/, mol; ΔH°f (H2O) = -285.8 kJ/mol; ΔH°f (SO2) = -296.4 kJ/mol

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Problem Details

For the following reaction 

2H2S (g) + 3O2 (g) → 2H2O (l) + 2SO2 (g) 

Calculate ΔH° from the given data. Is the reaction exothermic or endothermic? 

ΔH°f (H2S) = -20.15 kJ/mol; ΔH°(O2) = 0 kJ/, mol; ΔH°f (H2O) = -285.8 kJ/mol; ΔH°f (SO2) = -296.4 kJ/mol


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