Given the following reactions: N2 (g) + O2 (g) → 2NO (g) AH = +180.7 kJ 2N20 (g) → O2 (g) + 2N2 (g) AH = -163.2 kJ the enthalpy of reaction for 2N20 (g) → 2NO (g) + N2 (g) is, kJ. O -343.9 O 343.9 O -145.7 O 145.7 O 17.5

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The thermochemical equation for the combustion of propane is shown below:             C3H8(g)  +  5 O2(g)  →  3 CO2(g)  +  4 H2O(liq)       ΔrH° = -2220 kJ/mol-rxn What is the enthalpy change for the following reaction? 9 CO2(g)  +  12 H2O(liq)  →  3 C3H8(g)  +  15 O2(g)   a) -6600 kJ b) -8880 kJ c) +6660 kJ           d) +8880 kJ           e) +4440 kJ

Calculate the standard enthalpy of formation of carbon disulfide (liquid) from its elements, given C(s) + O2(g) → CO2(g) S(s) + O2(g) → SO2(g) AH = -296.8 kJ CS2(1) + 3 O2(g) → CO2(g) + 2 SO2(g) AH = -393.5 kJ AH = -1076.8 kJ 89.7 kJ -386.5 kJ -1767.1 kJ 386.5 kJ None of the above