Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

The reaction shown by the second diagram is more exothermic. There is a greater difference in energy between the reactants and products. The green arrow is longer.

Activation energy is the minimum energy needed for ‘successful collisions’ where atoms within the reactants rearrange to form products. It can be represented on an energy level diagram. The diagram ...

Solar-energy conversion technologies based on organic semiconductors—such as dye-sensitized solar cells and organic photovoltaics 1,2,3 —as well as low-power-consumption electronic devices—such as ...