(c) A heat storage system developed using the endothermic partial dehydration of sulphuric acid, and its subsequent, exo

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C A Heat Storage System Developed Using The Endothermic Partial Dehydration Of Sulphuric Acid And Its Subsequent Exo 1 (41.72 KiB) Viewed 19 times

(c) A heat storage system developed using the endothermic partial dehydration of sulphuric acid, and its subsequent, exothermic hydration. In this system, the volatile product is steam, which is condensed and stored. Assume the developed system uses a 70% aqueous solution of sulphuric acid by mass, and that the heat evolved by condensing steam is wasted, calculate the heat storage capacity in kWh per cubic metre of fully hydrated sulphuric acid. DATA H2SO4.2.3H2O(l) + H2SO4.0.1H2O(l) + 2.2H2O(g) AH,° = 137 kJ/mol H2O(1) H2O(g) AH, = 44 kJ/mol Density of 70% H2SO4 = 1620 kg/m