## Answers

4nswer peleaseoe Enthalpy of Combustion the amount enerrgy When Imole of a eempocnd is bvened in ercess Oxgen to prolee prestuets presswre Machernaticaly AHAaM-ZAH Cpnsuet)-AH eacea ne at 298 and latm eis expicesseol ais Now cansideing the dsmbusei'on preapane Geven, 4Hf He )104.-4 K/m 4H 02= -393.5 KT/moc AH O70cg) = 241.8 KT/mst It is important to note that AH 0,9)=O KJ/mr 14 as re coming directty feom aemerphere ZAHpratuc 3xAfH(co,) +4x AHC) xC-393.5+14x -24 1.2 = 1180.5-96 7.2) KJ/mo = -214 7.7KJ/moe KT/mst Ces tte) SxAHfCo xC-I04- x KT/me +5x ZAHRCHeactant) 11 = -104-子KImoc

2 AH goececluct -2AH Ceractane 2147.7t 104.7) KJ1mol 22524 K1T/n 2252*+0Ttmat -2043 KTms = - 2.043x (06mote Thees the enthalpy csmbustion f pecspane Cmo - 2.043 X ID T/mot will be

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