File:10. Оксидација на јагленче во стопен калиум нитрат.webm

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file(WebM audio/video file, VP9/Vorbis, length 1 min 18 s, 1,920 × 1,080 pixels, 4.5 Mbps overall, file size: 41.64 MB)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

[edit]
Description
Македонски: Експеримент кој ја демонстрира оксидацијата на јагленче во стопен калиум нитрат. При контакт на зажарено јагленче со стопен калиум нитрат започнува интензивно ослободување на кислород. Ослободениот кислород доведува до оксидација при која се зголемува температурата на јагленчето и тоа продолжува да гори во атмосфера од речиси чист кислород. Ова е проследено со постојано потскокнување на зажареното јагленче над стопениот калиум нитрат. Процесот може да се опише со упростена (и сумарна) равенка која опишува дел од реакциите кои се одвиваат во системот:
2KNO3(l) + C(s) = 2KNO2(l) + CO2(g).
Осмислено и изведено од Марина Стојановска, Миха Буклески и Владимир Петрушевски, Институт за хемија, ПМФ, УКИМ, Скопје.
English: An experiment that demonstrates the oxidation of a piece of charcoal in molten potassium nitrate. When glowing charcoal is placed in molten potassium nitrate, oxygen formation starts. The oxygen is responsible for the oxidation that increases the temperature of the charcoal and the charcoal continues to burn in almost pure oxygen atmosphere. This is accompanied by continuous bouncing of the charcoal above the molten potassium nitrate. The process can be described by the simplified (and summarised) equation that describes part of the reactions that take place:
2KNO3(l) + C(s) = 2KNO2(l) + CO2(g).
Planned and performed by Marina Stojanovska, Miha Bukleski and Vladimir Petruševski, Department of Chemistry, FNSM, Ss. Cyril and Methodius University, Skopje, Macedonia.
Română: Experiment ce demonstrează oxidarea unei bucăți de cărbune în azotat de potasiu topit. Când cărbunele incandescent este plasat în azotatul de potasiu topit, începe formarea de oxigen. Oxigenul este responsabil de oxidarea care crește temperatura cărbunelui, care continuă să ardă într-o atmosferă formată aproape exclusiv din oxigen pur. Aceasta este însoțită de salturi continue ale cărbunelui peste azotatul de potasiu topit. Procesul poate fi descris prin ecuația simplificată (și sumarizată) care descrie o parte a reacțiilor ce au loc:
2KNO3(l) + C(s) = 2KNO2(l) + CO2(g).
Planificat și efectuat de Marina Stojanovska, Miha Bukleski și Vladimir Petruševski, Catedra de Chimie, FNSM, Universitatea Sfinții Chiril și Metodiu, Skopje, Macedonia.
Date
Source Own work
Author Petrovskyz
Other versions Derivative works of this file:  Smoking test tube looped animation.gif

Licensing

[edit]
I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current00:47, 18 October 20161 min 18 s, 1,920 × 1,080 (41.64 MB)Petrovskyz (talk | contribs)User created page with UploadWizard

Transcode status

Update transcode status
Format Bitrate Download Status Encode time
VP9 1080P 964 kbps Completed 12:40, 3 August 2018 3 min 14 s
Streaming 1080p (VP9) 880 kbps Completed 00:20, 7 December 2023 2.0 s
VP9 720P 481 kbps Completed 12:38, 3 August 2018 2 min 2 s
Streaming 720p (VP9) 397 kbps Completed 17:24, 7 December 2023 1.0 s
VP9 480P 303 kbps Completed 12:37, 3 August 2018 1 min 31 s
Streaming 480p (VP9) 219 kbps Completed 17:28, 7 December 2023 1.0 s
VP9 360P 221 kbps Completed 12:36, 3 August 2018 1 min 2 s
Streaming 360p (VP9) 137 kbps Completed 19:58, 11 December 2023 2.0 s
VP9 240P 170 kbps Completed 12:36, 3 August 2018 48 s
Streaming 240p (VP9) 98 kbps Completed 13:58, 21 November 2023 29 s
WebM 360P 580 kbps Completed 09:08, 16 March 2017 1 min 24 s
Streaming 144p (MJPEG) 551 kbps Completed 12:18, 27 October 2023 6.0 s
Stereo (Opus) 81 kbps Completed 06:31, 9 November 2023 2.0 s
Stereo (MP3) 128 kbps Completed 09:42, 27 October 2023 2.0 s

File usage on other wikis

The following other wikis use this file: