The propane fuel (C3H8) used in gas barbeques burns according to the thermochemical equation: C3H8(g) + 5 O2(g) ¡ 3 CO2(g) + 4 H2O(g) ∆Hr°xn = -2044kJ If a pork roast must absorb 1.6 * 103 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?

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Chapter6: Thermochemisty
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Problem 6.92QP: The Group 2A carbonates decompose when heated. For example, BaCO3(s)BaO(s)+CO2(g) Use enthalpies of...
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The propane fuel (C3H8) used in gas barbeques burns according to the thermochemical equation:

C3H8(g) + 5 O2(g) ¡ 3 CO2(g) + 4 H2O(g) ∆Hr°xn = -2044kJ

If a pork roast must absorb 1.6 * 103 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?  

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