FREE ESSAY ON MARBLE CHIPS

MARBLE CHIPS

If a reaction isn't going very fast, one of the first things to try is heating it up. This
usually gets the reaction going but why? Well, there are two reasons. 
At higher temperatures, the particles are generally moving faster. This means they
collide more often, so there are more collisions per second. Now, you must have
collisions to get reactions going, so more collisions means more potential reactions
between particles, so the reaction rate will rise. So the first reason for higher
temperatures raising the reaction rate is that higher temperatures means faster particles
means more collisions. If you are not sure about collisions and reactions, review the
collision theory lesson. 
In the lesson on the Maxwell-Boltzmann distribution, you learnt about the speeds of
particles in a gas. The same general principles apply in solids and liquids too. Some
particles move slowly, most particles move at medium speeds and a few move fast. The
faster the speed the fewer particles there are. At higher temperatures the particles tend
to move faster. Although there are very few particles at the highest speeds, the number
of them rises rapidly as the substance gets hotter.