`H_(2)(g)+I_(2) (s) rarr 2HI (g), DeltaH=51.9` KJ/mole
`H_(2)(g)+I_(2)(g) rarr 2 HI (g), DeltaH=-9.2` kJ/mole.
the heat of reaction of `I_(2)(s) rarr I_(2) (g)`

H_(2) (g) +I_(2) (g) rarr 2HI (g), DeltaH=51.9 kJ . According to this, heat of formation of HI is

H_2(g) + I_2(g) to 2HI(g) , DeltaH = 52.2 kJ 2HI(g) to H_2(g) + I_2(g), DeltaH = kJ

If 2AI(s) +1(1)/(2) O_(2)(g) rarr AI_(2)O_(3)(s), DeltaH =- 1667.8 kJ H_(2)(g) +(1)/(2)O_(2)(g) rarr H_(2)O(l), DeltaH =- 285.9 kJ Calculate DeltaH for the reaction AI_(2)O_(3)(s) rarr 2AI(s) +1(1)/(2)O_(2)(g)

If 2AI(s) +1(1)/(2) O_(2)(g) rarr AI_(2)O_(3)(s), DeltaH =- 1667.8 kJ H_(2)(g) +(1)/(2)O_(2)(g) rarr H_(2)O(l), DeltaH =- 285.9 kJ Calculate DeltaH for the reaction AI_(2)O_(3)(s) rarr 2AI(s) +1(1)/(2)O_(2)(g)

The enthalpy change for the following process are listed below : (a) Cl_(2(g)) rarr 2Cl_((g)), DeltaH=242.3kJ mol^(-1) (b) I_(2(g))rarr 2I_((g)), DeltaH=151.0kJ mol^(-1) (c) ICl_((g)) rarr I_((g))+Cl_((g)), DeltaH=211.3kJ mol^(-1) (d) I_(2(s)) rarr I_(2(g)), DeltaH=62.76kJ mol^(-1) If standard state of iodine and chloride are I_(2(s)) and Cl_(2(g)) , the standard enthalpy of formation for ICl_((g)) is :

The enthalpy changes for the following processes are listed below: Cl_(2(g)) rarr 2Cl_((g)) , DeltaH = 242.3 kJ mol^(-1) I_(2(g)) rarrr 2I_((g)) , DeltaH = 151.0 kJ mol^(-1) ICl_((g)) rarr I_((g)) + Cl_((g)) , DeltaH = 211.3 kJ mol^(-1) I_(2(s)) rarr I_(2(g)) , DeltaH = 62.76 kJ mol^(-1) Given that the standard states for iodine and chlorine are I_(2(s)) and Cl_(2(g)) , the standard enthalpy of formation for ICT is:

H_(2)O(g) rarr H_(2)O(l), DeltaH =- 40.7 kJ DeltaH is the heat of……………….of water.