Consider the following reactions 2 HI (g) H2(g) + I2 (g) AH 9.48 kJ/mol 12 (s) 12 (g) AH 62.44 kJ/mol What is AH, for HI (g)? Remember that I2 (s) is the most stable form of elemental iodine. Consider the following reactions 2 HI (g) H2(g) + I2 (g) AH 9.48 kJ/mol 12 (s) 12 (g) AH 62.44 kJ/mol What is AH, for HI (g)? Remember that I2 (s) is the most stable form of elemental iodine.