From the following data at `25^(@)C`
`{:("Reaction",Delta_(r)H^(@)" kJ/mol"),(1/2 H_(2)(g)+1/2 O_(2)(g) rarr OH(g),42),(H_(2)(g)+1/2 O_(2)(g) rarr H_(2)O(g),-242),(H_(2)(g) rarr 2H(g),436),(O_(2)(g) rarr 2O(g),495):}`
Which of the following statement (s) is/are correct:

From the following data at 25^(@)C {:(Reaction ,Delta_(r)H^(o)kJ//mol),((1)/(2)H_(2)(g)+(1)/(2)O_(2)(g)toOH(g),42),(H_(2)(g)+(1)/(2)O_(2)(g)to H_(2)O(g),-242),(H_(2)(g)to 2H(g),436),(O_(2)(g)to2O(g),495):} Which of the following Statement (s) is /are Correct: StatementA: Delta_(r)H^(@) "for the reaction" H_(2)O(g)to2H(g)+O(g)"is 925.5kJ/mol" Statement B: Delta_(r)H^(@) "for the reaction" H_(2)O(g)toH(g)+O(g)"is 423.5kJ/mol" Statement C:Enthalpy of formation of H(g) is-218 kJ/mol Statement D: Enthalpy of formation of OH(g) is 42 kJ/mol

H_(2)(g)+(1)/(2)O_(2)(g)rarr2H_(2)O(l), DeltaH =- 286 kJ 2H_(2)(g)+O_(2)(g)rarr2H_(2)O(l)……………kJ(+-?)

From the following reaction, (1/2) N_2O (g) + (3/4) O_2(g) rarr NO_2(g) , delta H = -x , C_2H_2 (g) + (5/2) O_2(g) rarr 2CO(g) + 3H_2O(l) , delta H = -y , 2C_3H_8 (g) + 10 O_2(g) rarr 6CO_2(g) + 8H_2O(l) , delta H = -z , which of the following options contain all values of enthalpy of combustion (delta H°_c) for the given reaction

Calculate Delta H^(theta) for the reaction : H_(2)O (l) rarr H_(2)(g) + (1)/(2) O_(2) (g) Given 2H_(2)(g) + O_(2)(g) rarr 2H_(2)O(l) Delta H = -571.6 kJ

Given that - 2C(s)+2O_(2)(g)rarr 2CO_(2)(g) Delta H = -787 KJ H_(2)(g)+ 1//2O_(2)(g)rarr H_(2)O(l) Delta =-286 KJ C_(2)H_(2)(g)+(5)/(2)O_(2)(g)rarr H_(2)O(l) Delta H=-1310 KJ Heat of formation of acetylene is :-