112. Using the following data, calculate the standard heat of forma- tion of ICl(g) in kJ/mol:
Cl2(g) 2Cl(3)
ΔΗ° = 242.3 kJ
12(g) → 21(g)
AH° = 151.0 kJ
ICl(g) → I(g) + Ci(g) AH° = 211.3 kJ
1,(s) 12(8)
AH° = 62.8 kJ
=

For a general reaction:

Expression for reaction quotient is written as follows:

Here, [A], [B], [C] and [D] is concentration of A, B, C and D respectively and a, b , c and d is their respective stoichiometry.

The given reaction is as follows:

Thus, expression for reaction quotient will be:

Putting the values,

Therefore, the value of reaction quotient is 450.