Respuesta :
When the molar heat of fusion of water is 6.02 kJ/mol, it takes 15.4 kJ of energy to melt 46.8 g of water. The enthalpy of a substance changes due to heat of fusion , which releases energy.
To convert a substance from a solid to a liquid while maintaining pressure, a certain amount of the substance must be used.
A thermodynamic system's enthalpy, which is one of its properties, is calculated by adding the system's internal energy to the product of its pressure and volume. It is a state heat of fusion that is employed in numerous measurements in chemical, biological, and physical systems while the pressure is constant. Called enthalpy
46g/18g equals mols of water.
mole-1 equals 2.56 mole
1 mole melts at a temperature of 6.02KJ of heat.
Heat needed to melt 2.56 moles is equal to 6.02kJ*2.56 = 15.4kJ.
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