SAT Subject Test Chemistry,10 edition

Bond Average    Bond    Energy

C≡O 1075    kJ/mol

C=O 728 kJ/mol

C–Cl 326    kJ/mol

Cl–Cl 243   kJ/mol

11 . Calculate the heat of reaction for the following equation using the information given
above.

CO  +   Cl 2     →  COCl 2

(A) 62  kJ

(B) −62 kJ

(C) −409    kJ

(D) 706 kJ