Problem: You may want to reference (Pages 186 - 190)Section 5.7 while completing this problem.Calculate the enthalpy change for the reaction:2 H2O2(l)  →  2 H2O(l) + O2(g)using enthalpies of formation:ΔHf [H2O2]=−187.8 kJ/mol ΔHf [H2O]=−285.8 kJ/mol

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Calculate the enthalpy change for the reaction: 2 H2O2(l)  →  2 H2O(l) + O2(g)



ΔH°rxn=ΔH°f, product-ΔH°f,reactant


Note that we need to multiply each ΔH˚ by the stoichiometric coefficient since ΔH˚ is in kJ/mol. 


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Problem Details

You may want to reference (Pages 186 - 190)Section 5.7 while completing this problem.

Calculate the enthalpy change for the reaction:

2 H2O2(l)  →  2 H2O(l) + O2(g)

using enthalpies of formation:

ΔHf [H2O2]=−187.8 kJ/mol 

ΔHf [H2O]=−285.8 kJ/mol



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