To calculate the standard enthalpy change for the fusion of 2.5 moles of ice at 0 to form water at 0, we can use the molar enthalpy of fusion of ice.H = n H_fusionwhere H is the standard enthalpy change, n is the number of moles, and H_fusion is the molar enthalpy of fusion.Given:n = 2.5 molesH_fusion = 6.01 kJ/molH = 2.5 moles 6.01 kJ/mol = 15.025 kJThe standard enthalpy change for the fusion of 2.5 moles of ice at 0 to form water at 0 is 15.025 kJ.