Plz write the reactions only... t evolved was found to be 91.2 kj. one mole of mgs0. 7h,o on dissolution gives a solution of the same

10. At 25C, 1 mole of MgSO, was dissolved in water, the heat evolved was found to be 91.2 kJ. One mole of MgS0. 7H,O on dissolution gives a solution of the same composition accompanied by an absorption of 13.8 kJ. The enthalpy of hydration, i.e., AH for the reaction. MgSO s)+ 7H,O() > Mgs0,.7H,O(s) is (A) -105 kJImol (B) -77.4 kJ/mol (C) 105 kJ/mol (D) None of these 11. Which of the follawi