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ERIC Number: EJ1154877
Record Type: Journal
Publication Date: 2017-Mar
Pages: 6
Abstractor: As Provided
ISSN: ISSN-0036-6811
Touch-Initiated Reaction of Nitrogen Triiodide as a Template for Activation Energy Classroom Discussions
Short, Duncan
School Science Review, v98 n364 p41-46 Mar 2017
Activation energies form an energy barrier to a chemical reaction taking place. Simple collision theory, i.e. that particles need to collide to react, would suggest that activation energy is the energy needed to overcome a coulombic barrier provided by the negatively charged electrons contained within energy shells surrounding an atomic nucleus. Deriving activation energy from experiment is usually beyond the school curriculum. What can be demonstrated, however, is an almost barrierless reaction initiated by the slightest touch or vibration for the decomposition of nitrogen triiodide. This spectacular demonstration can be combined with calculations on bond enthalpies to help further understanding.
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A