# Thermochemistry

##### What does Hess's law say about the enthalpy of a reaction?
What does Hess's law say about the enthalpy of a reaction?...
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##### How is Hess's law applied in calculating enthalpy?
How is Hess's law applied in calculating enthalpy?...
##### What is the enthalpy change in kilojoules for the combustion of 1 mol of ethanol, C2H5OH (l), to form gaseous carbon dioxide and gaseous water
what is the enthalpy change in kilojoules for the combustion of 1 mol of ethanol, C2H5OH (l), to form gaseous carbon dioxide and gaseous water? use bond energies to calculate your answer. (hint: there is a double bond in carbon dioxide and oxygen) the answer is supposed to be -1100 but i have no ide...
##### What is the Born-Haber Cycle?
What is the Born-Haber Cycle?...
##### Thermochemistry
Ba (OH)2 (s) + 2 NH4Cl (s)  →  BaCl2 (s) + 2 NH3 (g)  +  2 H2O (l) DHf° (kJ/mol)   -626.56         -314.55         ...
##### How do you use Hess's Law to calculate enthalpy for this reaction?
Given Data: #"N"_2(g) + "O"_2(g) -> 2"NO"(g)# #DeltaH = +"180.7 kJ"# #2"NO"(g) + "O"_2(g) -> 2"NO"_2(g)# #DeltaH = -"113.1 kJ"# #2"N"_2"O"(g) -> 2"N"_2(g) + "O"_2(g)# #DeltaH = -"163....
##### What is the equation for Hess's law?
What is the equation for Hess's law?...

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