Quality Assured
Tooltip
These resources have been reviewed and selected by STEM Learning’s team of education specialists for factual accuracy and relevance to teaching STEM subjects in UK schools.

Rates of reaction and activation enthalpy

High levels of ultraviolet radiation out in space drive reactions that can turn white beads into their coloured form. Students investigate how temperature affects the rate at which the beads turn back to white. At key stage five, students can use the results sheet template to find the activation enthalpy. In the video, Judith Green explains how the UV beads in beakers of can be used to measure how temperature affects the rate of reaction. Curriculum areas covered:

  • Experimental design
  • Reaction rates
  • Collision theory
  • Activation enthalpy
  • Equilibria and Le Chatelier’s principle

Show health and safety information

Please be aware that resources have been published on the website in the form that they were originally supplied. This means that procedures reflect general practice and standards applicable at the time resources were produced and cannot be assumed to be acceptable today. Website users are fully responsible for ensuring that any activity, including practical work, which they carry out is in accordance with current regulations related to health and safety and that an appropriate risk assessment has been carried out.

Downloads

Show downloads

Close

Download all files as a .zip2.25 MB
Information on the permitted use of this resource is covered by the Category Three Content section in STEM Learning’s Terms and conditions.
Subject(s)Space, Science, Practical work, Chemistry
Age11-14, 14-16
Published2010 to 2019
Published by

Collections
Direct URLhttps://www.stem.org.uk/rx32ft

Actions

Add to favourites list

Share this resource

Lists that tag this content

Rates of reaction, energy changes and kinetic changes, POSTED BY