Answer:
We are given
[tex]I2(g) + Cl2(g)[/tex] →[tex]ICl(g)\\[/tex]
upon balancing we get
[tex]I2 (g) + Cl(2)[/tex]→ [tex]2ICl[/tex]
we observe that for each 1 mole of I2(g) 26.5kJ of energy is evolved
so the Balanced Thermochemical equation will be
[tex]I2 (g) + Cl(g)[/tex] →[tex]2ICl + 26.5kJ[/tex]