2. What is the volume MgO (molecular weight = 40 g/mol, density= 4 g/cm3 ) that will be needed to store solar energy collectedfrom 20 m2 of flat plate solar collectors with heat gain of 400kWh/m2 ? Use the MgO reaction given below. MgO (s)+ H2O (g) =Mg(OH)2 (s) ?H = -81 kJ/mol

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density S 4 glum W weight 40gmol A Habs 81 1c... View the full answer