Chemistry > STUDY GUIDE > Thermochemical Equations: Project Modeling Energy Changes (All)
Thermochemical Equations: Project Modeling Energy ChangesSTEP 2: A) “Propane gas plus oxygen gas produces - carbon dioxide gas plus water and heat.- B) Convert the word equation to a chemical equa ... tion and complete the reaction. Be sure to balance the chemical equation: C₃H₈ + 5O₂ → 3CO₂ + 4H₂O + heat STEP 3: Table B) Substance ∆H’f(kj/mol) C’3H’s(g) -103.85 O’2(g) 0 CO’2(g) -393.51 H’2O(g) -241.82 Table C) ∆H’f(kj/mol) Total enthalpy of reactants -2147.81kj/mol Total enthalpy of products -103.85 kj/mol Table D) Enthalpy of reaction ∆H’rxn(kj/mol) -2043.96 kj/mol Reaction- endothermic or exothermic Exothermic STEP 4) [Show More]
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