Write the chemical equations showing the dissolution of sodium chloride, naphthalene C10H8, potassium phosphate, and calcium chloride. The first one has been done for you as an example.
NaCl H2O Na+ + Cl-
C10H8+H20--->10C-4 +8h+
K3PO4+H2O--->(3K+)+1PO4-3
CaCl2+H2O--->Ca(2+)+2Cl-

If an equal molar amount of each solute in the above was dissolved in 100 kg of water, which solute would cause the largest change in temperature? Explain your answer.