A Level Chemistry Question
The equation for the complete combustion of 2-methylpropan-2-ol is C4H10O(l)+6O2(g)> 4CO2(g)+5H2O(l)
Using the bond enthalpies shown below, calculate a value for the enthalphy change in KJ/mol, for the complete combustion of 2-methylpropan-2-ol
Bond Mean Bond Enthalpy/KJ/mol
C-C 347
C-H 413
C-O 358
O-H 464
O=O 498
C=O 805
Using the bond enthalpies shown below, calculate a value for the enthalphy change in KJ/mol, for the complete combustion of 2-methylpropan-2-ol
Bond Mean Bond Enthalpy/KJ/mol
C-C 347
C-H 413
C-O 358
O-H 464
O=O 498
C=O 805
Don't want to give you the answer but here are the steps:
1. write out the equation using displayed formulae
2. count the bonds in each molecule and write them below
3. use the equation: enthaply change = bonds broken (sum of all bond enthapies of broken bonds) - bonds formed (sum of all bond enthapies of formed bonds)
Hope that's helpful
1. write out the equation using displayed formulae
2. count the bonds in each molecule and write them below
3. use the equation: enthaply change = bonds broken (sum of all bond enthapies of broken bonds) - bonds formed (sum of all bond enthapies of formed bonds)
Hope that's helpful
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