Gasegenskaber
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Indhold
- Gas
- Varme
- Termodynamisk
- Tiltrækning
- Tryk
- Ideal gaslov
- Boyle's Lov
- Charles' lov
Beskrivelse
Pump gasmolekyler i en kasse og se hvad der sker når du ændre rumfang, tilføjer eller fjerner varme, og meget mere. Mål temperatur og tryk, og opdag hvordan egenskaberne af gassen varierer i forhold til hinanden. Undersøg kinetisk energi og hastigheds-histogrammer for lette og tunge partikler. Undersøg diffusion, og bestem hvordan koncentration, temperatur, masse og radius påvirker diffusionshastigheden.
Læringsmål
- Bestem hvordan ændring af en variabel mellem Tryk, Volumen, Antal og Temperatur påvirker andre gasegenskaber.
- Beskriv forholdet mellem partikel-væg kollisioner og tryk.
- Forudsig hvordan skiftende temperaturer vil påvirke hastigheden af molekyler.
- Forudsig hastigheden af molekyler i termisk ligevægt, baseret på den relative masse af molekyler.
- Identificer hvornår tryk-volume arbejde udføres på eller af en gas.
- Forklar hvordan to gasser blandes.
- Design et eksperiment for at finde de faktorer der påvirker diffusionshastigheden.
Version 3.15
Lærertips
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Oversigt over SIM-kontroller, modelforenklinger og indsigt i studerendes tænkemåder ( PDF ). |
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