- #1
chemzz
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Homework Statement
Calculate the heat of combustion for C2H6 from the following information:
C2H4+ 3O2----> 2 CO2 + 2 H2O (-1409.5kJ)
C2H4 + H2 ----> C2H2 (-136.7 KJ)
H2 + 1/2 O2 -----> H2O ( -285.5 kJ)
The Attempt at a Solution
C2H6 --> C2H4 + H2 +136.7kJ
C2H4 + 302 --> 2CO2 + 2H20 -1409.5kJ
C2H6 + 3O2 --> 2CO2 + 2H2O + H2 -1272.8kJ
H2 + 1/2 O2 --> H2O -285.5Kj
C2H6 + 3.5O2 --> 2CO2 + 3H2O - 1558.3kJ
is my final answer 1558.3 correct? can someone check this for me pleasez