Energy released by burning propane

[Retro2001]

Hello. This is a kinda unusual question, but we seem to have a very rich mix of people here so I figure that I might get an answer. How much energy is relased by burning one unit (gram, cc, whatever) of propane under STP (air mix of elements)conditions? Thanks.

Be Cool,

Will

 

[Warrenton]

Well if there is no other chemicals present except for the propane and oxygen, it is 100% efficient as only carbon and H2O are left over.

In those situations its quite a lot of energy.

 

[Regine]

According to my online reference, the standard heat of combustion of propane is -2.043e3 kJ/mol. 1 mol= 44 g, which means 46.4 kJ/g.