The Effect of Changing the surface area on the Rate of Reaction?
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The Effect of Changing the surface area on the Rate of Reaction?
By :
22/10/2013
The effect of changing the surface area on the rate of reaction?
Unit Question: Should we speed things up or slow them down?
Hypothesis:
According to collision theory, should the surface area increase the amount of collisions increase increasing the rate of reaction. Therefore, my hypothesis is that when the surface area increases the rate of reaction increases.
Background information:
“Collision theory is a theory proposed independently by Max Trautzin 1916 and William Lewis in 1918, that qualitatively explains how chemical reactions occur and why reaction rates differ for different reactions. The collision theory states that when suitable particles of the reactant hit each other, only a certain percentage of the collisions cause any noticeable or significant chemical change; these successful changes are called successful collisions. The successful collisions have enough energy, also known as activation energy, at the moment of impact to break the pre-existing bonds and form all new bonds. This results in the products of the reaction. Increasing the concentration of the reactant particles or raising the temperature, thus bringing about more collisions and therefore many more successful collisions, increases the rate of reaction. “
"Collision Theory."Wikipedia. Wikimedia Foundation, 10 Oct. 2013. Web. 26 Oct. 2013. .
IV: Surface are of different sized marble chips (Small, medium, large) each with a mass of 5 grams.
DV: rate of reaction
CV:
CV
How to Control?
Why?
Mass of marble chips
We will use a balance, and a weighing float, to measure exactly 5 grams of Calcium Carbonate
Keeping the mass the same is critical, otherwise the results would not be relative to a certain mass, but to a certain mass for every result.
Volume of Sulphuric Acid
We will use a
The Effect of Changing the surface area on the Rate of Reaction?
By :
22/10/2013
The effect of changing the surface area on the rate of reaction?
Unit Question: Should we speed things up or slow them down?
Hypothesis:
According to collision theory, should the surface area increase the amount of collisions increase increasing the rate of reaction. Therefore, my hypothesis is that when the surface area increases the rate of reaction increases.
Background information:
“Collision theory is a theory proposed independently by Max Trautzin 1916 and William Lewis in 1918, that qualitatively explains how chemical reactions occur and why reaction rates differ for different reactions. The collision theory states that when suitable particles of the reactant hit each other, only a certain percentage of the collisions cause any noticeable or significant chemical change; these successful changes are called successful collisions. The successful collisions have enough energy, also known as activation energy, at the moment of impact to break the pre-existing bonds and form all new bonds. This results in the products of the reaction. Increasing the concentration of the reactant particles or raising the temperature, thus bringing about more collisions and therefore many more successful collisions, increases the rate of reaction. “
"Collision Theory."Wikipedia. Wikimedia Foundation, 10 Oct. 2013. Web. 26 Oct. 2013. .
IV: Surface are of different sized marble chips (Small, medium, large) each with a mass of 5 grams.
DV: rate of reaction
CV:
CV
How to Control?
Why?
Mass of marble chips
We will use a balance, and a weighing float, to measure exactly 5 grams of Calcium Carbonate
Keeping the mass the same is critical, otherwise the results would not be relative to a certain mass, but to a certain mass for every result.
Volume of Sulphuric Acid
We will use a
Citations: "Collision Theory." Wikipedia. Wikimedia Foundation, 10 Oct. 2013. Web. 26 Oct. 2013. . "The Free Automatic Bibliography and Citation Generator." EasyBib. N.p., n.d. Web. 26 Oct. 2013. .