11. One mole of an anhydrous salt AB dissolves in water with the evolution of 21.0 J mol-1 of heat. If the heat of hydration of AB is -29.4 J mol-1 , then the heat of dissociation of hydrated salt AB is a ) 50 . 4 J m o l - 1 b ) 8 . 4 J m o l - 1 c ) - 50 . 4 J m o l - 1 d ) - 8 . 4 J m o l - 1 Share with your friends Share 10 Bharti Paliwal answered this Dear Student Regards 14 View Full Answer