Question

Given the following data

C2H4 (g) + 3O2 (g) -> 2CO2 (g) + 2H2O (l) H = –1411.0 kJ
2C2H6 (g) + 7O2 (g) -> 4CO2 (g) + 6H2O (l) H = –3119.8 kJ
2H2 (g) + O2 (g) -> 2H2O (l) H = –571.7 kJ

calculate H for the reaction
C2H4 (g) + H2 -> C2H6 (g)

Answer 1

Answer:H = 5

Explanation: You would get this answer if you divide by 2 then multiple by 7