Monday
March 30, 2015

Homework Help: chemistry

Posted by sari on Thursday, October 13, 2011 at 4:15pm.

What mass of CO2, a greenhouse gas, is produced per liter of each fuel (assuming complete combustion)
I got this data
density of ethanol = 0.785 g/mL

density of octane = 0.699 g/mL

Ethanol) C2 H5 OH + 2O2 -> 2CO2 + 3H2O
delta H combustion ethanol = -1234.8 Kj/mol


Octane) C8H18 + (25/2)O2 -> 8CO2 + 9H2O\
delta H combustion = -5074.3 KJ/mol

thanks!

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