Question

The propane fuel (C3H8) used in gas barbeques burns according to this thermochemical equation. If a pork roast must absorb 1.5×103 kJ to fully cook, and if only 15 % 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?

Answer 1

ANS:— Given that absorbed by Energy pook doost = 1500 Ks Energy efficiency boom barbeque to pook cooling = 15% combustion - Hence actual heat 1500 D.15 - 10,000K AHL propane combustion) = -221112) /mol no.of Hence foles Poopane required = 10,000 2217 4.510 moles so one more of poopane will gelese 3 moles do coz number + moes & com · 4.510x3 = 13.5 3 moles molar mass mass of coz of coz = 44 g/mol emited in atmosphere -13.53 mel x 409/mol - 595.39 grams