2. Find AH° for the reaction 2H2(e)+ 2C6) + O2=) → C:H;OH0, using the following thermochemical data. CHŞOH ) + 2 02 (E) → 2 CO2 (e) + 2 H2O ) C ()+ O2 e → CO2 (e) H2 (e + ½ O2 (e→ H2O ) AH = -875. kJ AH = -394.51 kJ AH = -285.8 kJ

What is the standard enthalpy change for the reaction: 2C5H10(1) + 15O2(g) → 10CO2(g) + 10H20(1); where C5H10(1) AH°f = –605.0 kJ/mol; CO2(g) AH°f = -393.5 kJ/mol; H2O(1) AH°F - 285.8 kJ/mol. O a. -5583 kJ O b. -5783 kJ O C. -5383 kJ O d. -5183 kJ e. -4983 kJ

CH, (g) 20, (g) → CO, (g) + 2 H,O (g) + Exothermic or endothermic

2. Calculating enthalpy: AH = -206 kJ mol¹¹, 3 Fe(s) + 2 O₂(g) → Fe3O4 (S) AH = -136 kJ mol-¹, a) Given 2Fe(s) + 1.5 O₂(g) → Fe₂O3 (S) determine AH, for the following reaction: 4Fe₂O3(s) + Fe(s) → 3Fe3O4 (s) Is this reaction exothermic or endothermic? Is this enough information to inform whether this reaction occurs or not? O b) Given AH vap of water at 373 K = 40.7 kJ mol¹¹, C₂(l)=75.2 J mol¹¹K²¹ and ₂(g)=33.6 J mol¹¹K²¹, calculate AHvap of water at 298 K.

Can you please help me with this question

Which of the reactions are exothermic?