`H_(2)(g)+(1)/(2)O_(2)(g)toH_(2)O(l),DeltaH=-285.8kJ`. What will be the value of `DeltaH` for the reaction: `2H_(2)O(l)to2H_(2)(g) +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)

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)

Given: C(s)+O_(2)(g)toCO_(2)(g),DeltaH=-393.5kJ 2H_(2)(g)+O_(2)(g)to2H_(2)O(g),DeltaH=-571.6kJ Calculate DeltaH of the reaction: C(s)+2H_(2)O(g)toCO_(2)(g)+2H_(2)(g) .

Diborane [B_(2)H_(6)(g)] is used as a very effective fuel for rockets. Calculate the heat of combustion of diborane for the following reaction: B_(2)H_(6)(g)+3O_(2)(g)toB_(2)O_(3)(g)+3H_(2)O(g) Given: (1) 2B(s)+(3)/(2)O_(2)(g)toB_(2)O_(3) (s),DeltaH^(0)=-1273kJ*mol^(-1) (2) H_(2)(g)+(1)/(2)O_(2)(g)toH_(2)O(l),DeltaH^(0)=-285.8kJ*mol^(-1) . (3) H_(2)O(l)toH_(2)O(g),DeltaH^(0)=+44kJ*mol^(-1) (4) 2B(s)+3H_(2)(g) to B_(2)H_(6)(g),DeltaH^(0)=+36kJ*mol^(-1) .

If DeltaH_(f)^(@) for H_(2)O_(2)(l) and H_(2)O(l) are -188kJ and mol^(-1) and -286 kJ mol^(-1) , what will be the enthalpy change of the reaction 2H_(2)O_(2)(l)to2H_(2)O(l)+O_(2)(g) ?

Calculate heeat of formation of cane sugar following data: H_(2)(g)+(1)/(2)O_(2)(g)toH_(2)O(g),DeltaH=-68.4 kcal C(g)+O_(2)(g)toCO_(2)(g),DeltaH=-94.4kcal C_(12)H_(22)O_(11)(s)+12O_(2)(g)to12CO_(2)(g)+11H_(2)O(l),DeltaH=-1350.0kcal