Science @ the College: Reaction Rates

Science @ the College: Reaction Rates

October 14, 2019 0 By Stanley Isaacs


We’re going to talk about reaction rates, how fast reactions occur. The simplist way to put it is that reaction rates can be influenced by different things like temperature Another thing that influences chemical reaction rates is actually surface area that’s what I’m going to focus on today. As surface area actually increases so does reaction rates what does this mean in a practical sense? We’ve got a hunk of zinc metal here I try to get this zinc to combust if I try to light it on fire Burn, burn It’s not going to happen anytime soon Instead, we’ll just try using some zinc powder There you can see there is more of a reaction that all comes down to the fact that I’ve got small parts this is just sand like you find on the beach so let’s see what we get out of this There’s a reaction there but not too much the only thing left that I have is this powder here which is a type of club moss pollen known as lycopodium powder