Chemistry Practice Problems Hess's Law Practice Problems Solution: Given the following data (1) 2ClF (g) + O2 (g) → C...

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Solution: Given the following data (1) 2ClF (g) + O2 (g) → Cl2O (g) + OF2 (g)         ΔH°rxn = 167.5 kJ (2) 2F2 (g) + O2 (g) → 2OF2 (g)                          ΔH°rxn = -43.5kJ (3) 2ClF3 (l) + 2O2 (g) → Cl2O (g) + 3OF2 (g)    ΔH°rxn = 394.1 kJ Calculate ΔHrxn for the reaction. Show your work! ClF (g) + F2 (g) → ClF3 (l)

Problem
Given the following data 

(1) 2ClF (g) + O2 (g) → Cl2O (g) + OF2 (g)         ΔH°rxn = 167.5 kJ 

(2) 2F2 (g) + O2 (g) → 2OF2 (g)                          ΔH°rxn = -43.5kJ 

(3) 2ClF3 (l) + 2O2 (g) → Cl2O (g) + 3OF2 (g)    ΔH°rxn = 394.1 kJ 

Calculate ΔHrxn for the reaction. Show your work! 

ClF (g) + F2 (g) → ClF3 (l)
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