The sparks generated by striking steel against a flint provide the activation energy to initiate combustion in this Bunsen burner. |
This amount of critical energy is known as the activation energy of the reaction. |
Two methods were used to determine, in non-isothermal conditions, the sintering activation energy of UO2 and UO2+x oxides. |
Most organic substances react with oxygen exothermically, but are quite stable, because the activation energy to do so is so large. |
Osmosis and diffusion is called passive transport because it takes no energy to move from a high concentration to a low concentration. |
The activation energy of the reaction is the amount of energy it takes for the reaction to get started. |