[kennymcmack]

What is the result when you mix IPA (C3H7OH) and oxygen (O2) with heat? Is it H2O and CO?

C3H7OH + 3O2 =====> 4H2O + 3CO   ???Is this correct? Thanks.

[dufengtao]

If oxygen is enough, the result can be H₂O and CO₂  .
If using Copper as a catalyzer, the result can be CH₃CH₂CHO

[408]

Add fire get CO2 and H2O

Over a Cu(or many other metal catalyst) get acetone

dufengtao, IPA has OH on C2, the cpd(propaldehyde) you gave has the aldehyde on C3...

If you just add heat nothing happens, IPA can be distilled in air without decomposing.

[kennymcmack]

so what you are suggesting is 2(C3H7OH) + 9(O2) =====>(fire)======> 8(H2O) + 6(CO2) ??
there is no copper in the equation and this is for a rocket engine. The ipa and oxygen are just been injected into a chamber and shot out the end of a tube.

[408]

So yes, one can assume that fire is present in order to get the two to react as given.  Fire initiates the radical reactions necessary for combustion to occur.  No rocket engine works by just squirting out the two, some sort of radical initiation agent is always present, usually an igniter of some sort.