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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
- Real stand material for an esecially stable and safe setup
- Student-suitable experiment descriptions with reports available
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Digital learning
(de) Versuchsbeschreibung
p1044600d .pdf
File size 0.59 Mb
pdf
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(en) Experiment guide
p1044600e .pdf
File size 0.60 Mb
pdf
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