The heat of transition of S_(alpha) into S_(beta) is +2.5 kJ. The heat of combustion of monoclinic sulphur is - 300 kJ mol^(-1). Calculate heat of combustion of rhombic sulphur(S_(alpha)).

The heat of transition of S_(alpha) into S_(beta) is +2.5 kJ. The heat

1.	The heat of transition of S_(alpha) into S_(beta) is +2.5 kJ. The heat of combustion of monoclinic sulphur is - 300 kJ mol^(-1). Calculate heat of combustion of rhombic sulphur(S_(alpha)).
Answer» Solution :`S _(ALPHA ) to S _(beta) , Delta H = + 2.5 kJ and S _(beta) + O _(2 (G)) to SO _(2 (g)) , Delta H =- 300 kJ` Adding these TWO, the heat of combustion of `Salpha`is OBTAINED. `S _(alpha ) + O _(2 (g)) to SO_(2 (g)) , Delta H =- 297.5KJ.`