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Given the Following Δ\Delta H ∘\circ Values, H2(g) + (1/2)O2(g) →\rarr H2O(l) Δ\Delta

Question 4

Multiple Choice

Given the following Δ\Delta H ∘\circ values, H2(g) + (1/2) O2(g) →\rarr H2O(l) Δ\Delta H ∘\circ f = -285.8 kJ/mol
H2O2(l) →\rarr H2(g) + O2(g) Δ\Delta H ∘\circ rxn = 187.6 kJ/mol
Calculate Δ\Delta H ∘\circ rxn for the reaction H2O2(l) →\rarr H2O(l) + (1/2) O2(g) .


A) -98.2 kJ/mol
B) -88.2 kJ/mol
C) -78.2 kJ/mol
D) -68.2 kJ/mol
E) None of the above

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