Enthalpy Question: Calculate the Heat of Formation of C2H6(g) from the combustion of that compound? Thanks!?
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Homework help please? I really don't understand how to do this! Calculate the Heat of Formation of C2H6(g) from the combustion of that compound and the combustion of carbon and hydrogen. Thank you so much!
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Answer:
C2H6 + 7/2O2 ----> 2CO2 + 3H2O delta H1 C + O2 ---> CO2 delta H2 2H2+ O2 ---> 2H2O delta H3 now trick is to take the above three and rearange/multiply to get your desired eqn 3H2 + 2C ----> C2H6 delta H4 deltaH4 = - deltaH1 +2 deltaH2 +3/2 deltaH3
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