1 mole of steam (H2O) = 18g Heat evolved = MCФ where m is the mass and c s specific heat capacity while Ф is change in temperature. Latent heat of fusion is 334 kj/kg while latent heat of vaporization is 2260 kj/kg and specific heat of water is 4.2 j/g/c = 18 ×2.01 × (135-100) = 1266.3 J 0.018 × 334000 = 6012 J (change of state from gas (steam) to liquid (water) 18 × 4.186× (100 -0) = 7534.8 J 0.018 × 2260000 = 40680 J (change of state from liquid to solid ice) 18 × 2.09 × (0--45) = 1692.9 J The total heat evolved is therefore 57186 J or 57.186 kJ
The correct name of the compound Mn3(PO4)2 is definitely the last option represented above <span>D. manganese(II) phosphate. I am pretty sure this answer will help you
