67. The propane fuel (C3H8) used in gas barbeques burns according to the thermochemical equation: C3H8 (9) + 5 O2(g) 3 CO(g) + 4HO(g) 1.0 kg CO , rxn = = -2044 kJ X If a pork roast must absorb 1.6 10 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