2. Find the ΔH for the reaction below, given the following reactions and subsequent ΔH

values:

2C2(g) + H2O(g) → C2H2(g) + ⁵/₂ O2(g)



C2H2(g) + 2H2(g) → C2H6(g) ΔH = –94.5 kJ


H2O(g) → H2(g) + ½ O2 (g) ΔH =71.2 kJ


C2H6(g) + ⁷/₂ O2(g) → 2 CO2(g) + 3 H2O(g) ΔH = –283 kJ​