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If a pork roast must absorb 1700kj to fully cook and if


The propane fuel (C3H8) used in gas barbeques burns according to the following thermochemical equation:

C3H8(g)+5O2(g)→3CO2(g)+4H2O(g)ΔH°rxn=-2044kJ

If a pork roast must absorb 1700kJ to fully cook, and if only 14% 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?

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Chemistry: If a pork roast must absorb 1700kj to fully cook and if
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