How is the Hfusion used to calculate the energy needed to melt a mass of solid?A.Grams solid g/mol HfusionB.Grams solid g/mol 1/HfusionC.Grams solid mol/g HfusionD.Grams solid mol/g 1/HfusionSUBMITarrow_backPREVIOUS
Question
How is the Hfusion used to calculate the energy needed to melt a mass of solid?A.Grams solid g/mol HfusionB.Grams solid g/mol 1/HfusionC.Grams solid mol/g HfusionD.Grams solid mol/g 1/HfusionSUBMITarrow_backPREVIOUS
Solution
The energy needed to melt a mass of solid can be calculated using the heat of fusion (Hfusion). The correct formula to use would be:
C. Grams solid * mol/g * Hfusion
Here's the step-by-step process:
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Convert the mass of the solid from grams to moles. This is done by dividing the mass of the solid by the molar mass of the substance (mol/g).
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Multiply the number of moles by the heat of fusion (Hfusion). The heat of fusion is the amount of energy needed to change one mole of a substance from the solid phase to the liquid phase at constant temperature and pressure.
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The result will be the total energy needed to melt the solid, usually expressed in Joules or kilojoules.
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