Question

#9-12

A simple step by step process for all please

Thank you!

a) -2.81 x 103 kJ b) -25.8 k c15.6 k d) -42.6 k e) 25.8 k Given the thermochemical equation calculate AHo for the following reaction: 9. 2NOg) + 028) 2NO2g) 솨1°=-114.0 kJ NOg) NO(g) 1/2 02(g) a) +114.0 k b) +57.0 k c) -114 kJ d) -57.0k) e) +128 k] 10. The standard enthalpy change for the following reaction is -72.8 kJ. What is the standard enthalpy of formation of hydrogen bromide? a) -72.8 kJ b) 72.8 k c) -36.4 k d) e) -145.6 kJ none of the above 11. Use the following thermochemical equations C2H2(g) 2C02(g) + H2O(g) AH°=-1300 kj AH-1560kJ AH- -286 kJ 5/202(g) → H2(g) + 1/2O2(g)-. H2O(1) to calculate ΔΗ' for the reaction C2H2(g) + 2H2(g) C2H6(g). a) -3146 kJ b) -16 k c) +1560 kJ d) -312 kJ e) -2860 k] 12. Calculate the AH。rn for the decomposition of calcium carbonate to calcium oxide and carbon dioxide. CaCO3(s) CaO(s) + CO2(g) AHfo[CaCOs(s)]--1206.9 kJ / mol; ΔΗϊ"[CaO(s))--635.1 kJ/mol; ΔΗ1cotg))--393S kJ/mol a) -2235.5k] b) -178.3 k] c) 178.3 k d) 2235.5 k

Answer 1