The scale of the Universe 2

An interactive tool to explore the size and scale of the universe and learn about everything in between. Created by Cary and Michael Huang.

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The Gibbs free energy | Post-16 thermodynamics tutorials
Use this tutorial, including a video demonstration, to help post-16 students learn about equilibrium, the Gibbs free energy and the feasibility of reactions.
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Entropy | Post-16 thermodynamics tutorials
Try this tutorial with accompanying videos to help teach students on post-16 courses about the concept of entropy and the second law of thermodynamics.
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Chemical reactions | Post-16 thermodynamics tutorials
Use this tutorial with videos to explore how the chance behaviour of particles and energy determines the direction and reversibility of chemical reactions.