And that means they will be more likely to overcome the activation energy barrier and become our products. Now, concentrations we see using these formulas affect or increase our rates. In other words, if we have higher concentration, if this guy becomes higher, this guy becomes higher, if this guy becomes higher and this guy becomes higher, our rates will increase. Now, pressure also has an effect on rates and we'll see how in another video. Now we spoke about elementary reactions in which reactants become products in a single step. Now, there are also multi step reactions and those include many different steps, intermediate steps.