Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Log in Sign Up. Save Word. Definition of heat of fusion. Love words? Start your free trial today and get unlimited access to America's largest dictionary, with: More than , words that aren't in our free dictionary Expanded definitions, etymologies, and usage notes Advanced search features Ad free!
As mentioned in the opening paragraph, the most common application of the heat of fusion is the melting of ice to water. The vast majority of examples where heat of fusion is commonplace can be seen in the manufacturing industry.
The following examples have been used for hundreds of years and are still perfected to this day. The processes of coin making, glassblowing, forging metal objects, and transforming blow molded plastics into household products all require heat of fusion to become final product. The change in your wallet, the glass vase on your fireplace mantel, and the plastic soda bottle from the vending machine all went through a heat of fusion manufacturing process.
In coin making, solid zinc and copper metals in American pennies are placed into a casting furnace and heated by the heat of fusion process until they reach the liquid phase. Once in the liquid phase, the molten zinc and copper are poured into a mold, and cast into long bars.
In the casting process, the molten metal transforms from the liquid phase to the solid phase, becoming a solid bar. The long bars are flattened by heavy machinery and stamped into thousands of coins. How to use heat of fusion in a sentence In the last year, her fusion exercise class has attracted a cult following and become de rigueur among the celebrity set.
Will Texas Stay Texan? The Giant of the North R. The amount of heat required to convert a solid at its melting point into a liquid without an increase in temperature. Liquids release the same amount of heat when they solidify.
Updated November 09, Key Takeaways: Heat of Fusion for Melting Ice Heat of fusion is the amount of energy in the form of heat needed to change the state of matter from a solid to a liquid melting. Except for melting helium, heat of fusion is always a positive value. Featured Video. Cite this Article Format. Helmenstine, Todd. Freezing Point Depression Example Problem. Enthalpy Change of Ice to Water Vapor. Enthalpy Definition in Chemistry and Physics.
Boiling Point Elevation Example Problem. Covalent or Molecular Compound Properties.
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