Barbeque Pork Roast
Enthalpy Help!?
The propane fuel C3H8 used in gas barbeques burns
according to the following thermochemical equation:
C3H8(g)+5O2(g) -yields- 3CO2(g) +4H2O(g)
delta Hxrn =-2217kJ
If a pork roast must absorb 1500 kJ to fully cook, and if only 10% of the heat produced by the barbeque is actually absorbed by the roast, what mass of CO2 is emitted into the atmosphere during the grilling of the pork roast?
please help explain to me how to approach it. Thank you!
if 10% is 1500kj then 100% is 15000kj
then 15,000kj (3mol CO2/2217kJ)=6.77mols CO2
6.77mols CO2 (44g CO2/mol CO2)=297g CO2
Cooking Bar-b-que BBQ Pork Roast
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