Investigating Heat Of Combustion
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292k
345k
53
- 11.08 KJ Mol-1
Hexane
50
292k
343k
51
- 10.66 KJ Mol-1
Heptane
Using Moles = Mass/RAM I shall work out the moles used made from the average of the results.
The RAM of Heptane = 100
The RAM of Hexane = 86
The average mass change for Heptane was 1.46 grams.
The average mass change for Hexane was 1.43 grams.
Moles of Heptane = 1.46/100 = 0.0146 this is 1/68th of a mole.
Moles of Hexane = 1.43/86 = 0.0166 this is 1/60th of a mole.
Therefore the average results by the figures above would give me the amount of energy that would be produced by one mole.
Heptane = 11.08*68 = - 753.44 KJ Mol-1
Hexane = 10.66*60 = - 639.6 KJ Mol-1
My calculated values are well below that of the theoretical ones, this is ...
