Given that the heat of fusion of water is +6.02 kJ/molkJ/mol, that the heat capacity of H2O(l)H2O(l) is 75.2 J/mol⋅KJ/mol⋅K and that the heat capacity of H2O(s)H2O(s) is 37.7 J/mol⋅KJ/mol⋅K, calculate the heat of fusion of water at -15 ∘C∘C.