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ID number:815716
Evaluation:
Published: 02.11.2010.
Language: Latvian
Level: Secondary school
Literature: 3 units
References: Not used
Extract

Situācija
Gaisa reģenerācijai zemūdenēs un citās slēgtās telpās izmanto Na2O2 un KO2 ,jo to reakcijā ar ogļskābo gāzi izdalās skābeklis:

2Na2O2 + 2CO2 2Na2CO3 + O2
4KO2 + 2 CO2 2 K2CO3 + 3O2

Problēma 1
2Na2O2 + 2CO2 2Na2CO3 + O2

Kā redzams no reakcijām, izmantojot nātrija peroksīdu, no 2 ogļskābās gāzes molekulām iegūst tikai 1 molekulu skābekļa – gaisa reģenerācija nenotiek pietiekošā apjomā un pēc laika iestājas skābekļa bads.…

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