Determine the heat of reaction for the decomposition of one mole of benzene to acetylene, C6H6(l) ---> 3C2H2(g)

given the following thermochemical equations:

2C 6 H 6 ( l ) + 15O 2 ( g ) ---> 12CO 2 ( g ) + 6H 2 O( g )

Δ H = -6271 kJ

2C 2 H 2 ( g ) + 5O 2 ( g ) ---> 4CO 2 ( g ) + 2H 2 O( g )

Δ H = -2511 kJ

631 kJ

1262 kJ

3760 kJ

6902 kJ

8782 kJ