Using the following thermochemical equations (i) S(Rh) + 3/2 O_(2)(g) to SO_(3), DeltaH = -2x (kJ)/(mol) (ii)SO_(2)(g) + 1/2O_(2)(g) to SO_(3)(g), Delta H = - y (kJ)/(mol) Find ut the heat of formation of SO_(2)(g) in (kJ)/(mol)

Using the following thermochemical equations (i) S(Rh) + 3/2 O_(2)(g)

1.	Using the following thermochemical equations (i) S(Rh) + 3/2 O_(2)(g) to SO_(3), DeltaH = -2x (kJ)/(mol) (ii)SO_(2)(g) + 1/2O_(2)(g) to SO_(3)(g), Delta H = - y (kJ)/(mol) Find ut the heat of formation of SO_(2)(g) in (kJ)/(mol)
Answer» `(2x + y)` `(x + y)` `(2x/y)` `(y - 2x)` Solution :Equation (i) - (ii) GIVES `S(Rh) +O_(2)(g) to SO_(2)(g)`, `Delta_(F)H = DeltaH_(1) - DeltaH_(2)` ` = -2x + y`