CH6_Enthalpy_of_Formation_Study_Guide%281%29

CH6_Enthalpy_of_Formation_Study_Guide%281%29 - Name:

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Unformatted text preview: Name: ___________________________________ CH101 Enthalpy of Formation – Study Guide section 6.9 in the textbook Enthalpy of Formation The standard state of a gas means__________________________________________________________. For a liquid or a solid, the standard state refers to_______________________________________________. What is the value of ∆Hfo of a pure element in its standard state? ____________. What is the equation that relates ∆H for a reaction to ∆Hfo of the reactants and products? In which of the following reactions are ∆H and ∆Hfo the same? a) 2 CO(g) + O2(g) → 2 CO2(g) b) 3/2 H2(g) + 1/2 N2(g) → NH3(g) c) H2S (g) + 2 O2(g) → H2SO4(l) (ans: b) Watch video tutorial on Blackboard Calculate ∆H for each of the following reactions (use the data in Appendix II): (a) 2 C4H10 (g) + 13 O2(g) → 8 CO2(g) + 10 H2O(g) ans. ‐5315 kJ 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(l) ans. ‐1166 kJ (b) End of Chapter Practice Problems Tro First Edition: #73, 75, 77 Tro Second Edition: #81, 83, 85 answers are located in Appendix III of the textbook Take the Quiz on Blackboard 2 ...
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