Given : `S_((s))+(3)/(2)O_(2(g))rarrSO_(3(g)+2X Kcal`
`SO_(2(s))+(1)/(2)O_(2(g))rarrSO_(3(g)+Y Kcal`
The heat of formation of `SO_(2)` is `:-`

S + (3)/(2)O_(2) rarr SO_(3) + 2x kcal SO_(2) + (1)/(2) O_(2) rarr SO_(3) + y kcal Find out the heat of formation of SO_(2) :

S+3//2O_2rarrSO_3 + 2x kcal SO_2+ 1/2O_2rarrSO_3 + y kcal : The heat of formation of SO_2 is :

Given that S_((s)) + 3/2 O_(2(g)) rarr SO_(3(g)) + 2xK.cal SO_(2(g)) + ½ O_(2(g)) rarr SO_(3(g)) + y K.Cal . Which would be the enthalpy of formation SO_2 ?

Given C(s)+O_(2)(g)rarr CO_(2)(g)+94.2 Kcal H_(2)(g)+2O_(2)(g)rarr CO_(2)(g)+2H_(2)O(l)+210.8 Kcal The heat of formation of methane in Kcal will be