How does Temperature affect the rate of Chemical Reaction?


Temperature: Is the presence of heat in a substance, it is shown on a thermometer.

Reaction Rate: Speed with which reactants turn into products.

Chemical Reaction: A process when substances are changed into more new substances with different properties and composition.

The rate of a Chemical Reaction is affected by Temperature. When the temperature rises, it affects the rate of a chemical reaction by increasing its Reaction Rate. Most chemical reactions need to cross a energy obstacle to occur. This means that, in order to go undertake the reaction, a molecule of reactant must contain enough energy to reach the activation energy level, and heat is one of the ways in which this can happen. Also increasing the temperature, makes the molecules to move faster. When they begin to move faster that increases the more collisions between the molecules. This is what makes the Reaction Rate increase. One examples is two glow sticks put in to two different glasses. One glass has hot water, while the other glass has cold water. The glow stick in the cold water will not glow as brightly as the one in the glass with the hot water.




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Resources:
"How Does Temperature Affect the rate of Chemical Change?." How to do just about anything!. eHow, Web. 4 Mar. 2010. <http://www.ehow.com/how-does_5164965_temperature-affect-rate-chemical-reactions.html>.

"United Streaming." Discovery Streaming. Discovery Education, Web. 5 Mar. 2010. <http://player.discoveryeducation.com/index.cfm?guidAssetId=07BC02AD-6E64-42B1-B12C-F5EE8A46C4C3&blnFromSearch=1&productcode=US>.