what mass of CO_2 is emitted into the atmosphere during the grilling of the pork roast
The propane fuel C_3H_8 used in gas barbeques burns according to the following thermochemical equation:
C_3 H_8 (g) + 5O_2 (g) right arrow 3CO_2 (g) + 4H_2 O(g) Delta H= -2217kJ
If a pork roast must absorb 1700 kJ to fully cook, and if only 14% of the heat produced by the barbeque is actually absorbed by the roast, what mass of CO_2 is emitted into the atmosphere during the grilling of the pork roast?
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