Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
Rates of Reaction.
Member rating: No Rating | Words: | Submitted: Fri Sep 17 2004
Page Preview
On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:
Rates of Reaction This experiment is to observe how a reaction rate's speed is affected by the concentration of the substances being reacted. At first, we looked at some of the factors that affect the speed of reaction, and why. We thought about: Temperature - heat gives the molecules in the substances more kinetic energy. They move faster and collide more so they react more. (See the Collision Theory below.) (Sometimes) Light - which has a similar effect to temperature. Concentration - if the reactants are more concentrated, there are more molecules available to react with each other, so the reaction rate is faster. Surface area - the bigger surface area there is, the more atoms are exposed for reaction so the substances react faster. Catalysts speed up the reaction by providing a lower activation energy, more surface area and an alternative "route" for atoms to take when...
Get instant access
- Instant, unlimited access to our documents in full
- Swap your work for free access, or pay £4.99
- To see the full version of this document and 151,744 others
