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Title:Spremembe enegije pri kemijskih reakcijah elementov s klorovodikovo kislino in z vodikovim peroksidom
Authors:ID Božič, Aljaž (Author)
ID Kristl, Matjaž (Mentor) More about this mentor... New window
ID Dojer, Brina (Comentor)
Files:.pdf MAG_Bozic_Aljaz_2017.pdf (2,49 MB)
MD5: D83F2873F6AC84A8B0E733A92F6D136D
PID: 20.500.12556/dkum/5bb8ca55-f01a-4c1b-ac5b-de4c94d1d377
 
Language:Slovenian
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FNM - Faculty of Natural Sciences and Mathematics
Abstract:Namen naloge je bila opredelitev reakcije posameznega elementa v elementarnem stanju s koncentrirano klorovodikovo kislino kot endotermno ali eksotermno in opredelitev reakcije posameznega elementa v elementarnem stanju z vodikovim peroksidom kot endotermno ali eksotermno. Kemijske reakcije sem izvajal v digestoriju, kjer sem s pomočjo Vernierjevega vmesnika spremljal spreminjanje temperature v določenem časovnem intervalu. Reakcije sem izvajal z vsemi elementi, ki so bili na voljo v laboratoriju, zajel pa sem tako skupino kovin in nekovin kot skupino polkovin. Reakcije so potekale pri približno enakih pogojih. V nalogi sem predstavil lastnosti posameznih elementov iz skupine kovin, polkovin in nekovin ter s primeri preproste razlage spreminjanja energije pri kemijskih reakcijah skušal predlagati učiteljem, kako se lotiti usvajanja te snovi v razredu. Z rezultati naloge sem želel izpostaviti najbolj tipične eksotermne in endotermne reakcije elementov s kislino ali peroksidom, ki sicer niso tako pogosti pri obravnavanju snovi v šolah, a vendar so v naravi prisotni in uporabni. S tem sem želel spodbuditi učitelje k obravnavi v šoli.
Keywords:energija pri kemijskih reakcijah, entalpija, eksotermna kemijska reakcija, endotermna kemijska reakcija, elementi v elementarnem stanju, vodikov peroksid, klorovodikova kislina, sistem, okolica
Place of publishing:Maribor
Publisher:[A. Božič]
Year of publishing:2017
PID:20.500.12556/DKUM-68398 New window
UDC:542.9:546.131:546.215(043.2)
COBISS.SI-ID:23372552 New window
NUK URN:URN:SI:UM:DK:TRFY6CWO
Publication date in DKUM:06.10.2017
Views:2419
Downloads:115
Metadata:XML DC-XML DC-RDF
Categories:FNM
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:20.09.2017

Secondary language

Language:English
Title:Energy changes in the chemical reactions of elements with hydrochloric acid and with hydrogen peroxide
Abstract:The purpose od this dissertation was to define the reaction of a particular element in the elementary state with concentrated hydrochloric acid as endothermic or exothermicand to define the reaction of an element in the elementary state with hydrogen peroxide as endothermic or exothermic. I monitored the temperature change in time interval 10 minutes. The reactions took place under approximately the same conditions. With the results of the dissertation, I wanted to highlight the most typical exothermic and endothermic reactions of the elements with acid or peroxide, which are not so common in dealing with substances in schools, but they are naturally present and useful, and thus wanted to encourage teachers to be treated at school.
Keywords:energy changes in chemical reactions, enthalpy, exothermic chemical reaction, endothermic chemical reaction, elements in elementary state, hydrogen peroxide, hydrochloric acid, system, surroundings


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