6. Which of the following reactions is a standard formation reaction at T = 298 K?

a) C(s, graphite) + H₂(g) + O₂(g) C₆H₁₂O₆(s)

b) 2 Fe (s) + 1.5 O₂(g) Fe₂O₃(s)

c) N₂(l) + 2 O₂(l) N₂O₄(l)

d) Cl₂(g) + H₂(g) 2 HCl(g)

e) CO(g) + 2 H₂(g) CH₃OH(l)

7. Using the table of standard enthalpies of formation at T = 298 K in the provided pdf, calculate H for the following reaction:

2CH3OH(l)+3O2(g)4H2O(l)+2CO2(g)

Give your answer to ONE decimal place in kilojoules (kJ). Do NOT input the units. For example, if your answer is 12.62581 kJ, please input 12.6

Which of the following reactions is a standard formation reaction (i.e. Hrxn=Hf ) at T=298K ? C(s,graphite)+H2(g)+O2(g)C6H12O6(s)2Fe(s)+1.5O2(g)Fe2O3(s)N2(l)+2O2(l)N2O4(l)Cl2(g)+H2(g)2HCl(g)CO(g)+2H2(g)CH3OH(l) Question 7 Using the table of standard enthalpies of formation at T=298K in the provided pdf, calculate H for the following reaction: 2CH3OH(l)+3O2(g)4H2O(l)+2CO2(g) Give your answer to ONE decimal place in kilojoules (kJ). Do NOT input the units. For example, if your answer is 12.62581kJ, please input 12.6 If you need to input a negative value, please use the hyphen "-" followed directly by the number (no space). Do NOT use the underscore "."). For example, if your answer is 15.1611, please input 15.2