The enthalpy of fusion of water is 1.435 kcal/mol. The molar entropy change for the melting of ice at 0°C is
5.260 cal/(mol K)
0.526 cal/(mol K)
10.52 cal/(mol K)
21.04 cal/(mol K)
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The species which by definition has ZERO standard molar enthalpy of formation at 298 K is