Canada’s Instrumentation Leader Since 1946.
Canada’s Instrumentation Leader Since 1946.
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The course of sodium thiosulfate's temperature during melting and subsequent freezing is measured. Moreover, it can be clearly seen that heat is necessary for the melting process: the temperature does not rise until all the salt has melted. During freezing this energy is released. This can be seen especially well when the molten salt first undercools and then immediately freezes when a salt crystal is dropped into it. The temperature rises immediately to the melting point.
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Principle
The course of sodium thiosulfate’s temperature during melting and subsequent freezing is measured. Moreover, it can be clearly seen that heat is necessary for the melting process: the temperature does not rise until all the salt has melted. During freezing this energy is released. This can be seen especially well when the molten salt first undercools and then immediately freezes when a salt crystal is dropped into it. The temperature rises immediately to the melting point.
Benefits
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