How is the Hfusion used to calculate the energy needed to melt a mass of solid?A.Grams solid g/mol 1/HfusionB.Grams solid mol/g HfusionC.Grams solid mol/g 1/HfusionD.Grams solid g/mol Hfusion
Question
How is the Hfusion used to calculate the energy needed to melt a mass of solid?A.Grams solid g/mol 1/HfusionB.Grams solid mol/g HfusionC.Grams solid mol/g 1/HfusionD.Grams solid g/mol Hfusion
Solution
The energy needed to melt a mass of solid can be calculated using the heat of fusion (Hfusion). The correct formula is:
Grams solid * mol/g * Hfusion
So, the correct answer is B. Grams solid * mol/g * Hfusion
Here's the step by step process:
- Convert the mass of the solid from grams to moles using the molar mass (mol/g).
- 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.
- The result will be the energy needed to melt the solid. It's usually expressed in Joules or kilojoules.
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