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8 Cards in this Set
- Front
- Back
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How is rate measured? |
The amount of reactants used up or the amount of product formed |
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Define activation energy |
Activation energy is the minimum amount of energy required for two colliding particles to react. |
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What affects the rate of reaction? |
Temperature Concentration Pressure Surface area Catalyst |
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How does a increase in concentration increase the rate of reaction? |
More particles present, more successful collisions in a given period if time, rate of reaction increases |
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How does an increase in pressure increase the rate of reaction? |
Particled are forced closer together, more successful collisions in a given period of time |
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How does an increase in temperature increase the rate of reaction? |
Particles gain more kinetic energy and move faster, there are more frequent successful collisions, the rate of reaction increases |
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How does an increase in surface area increase the rate of reaction? |
Increased exposed surface of the reactants, increases the number of successful collisions in a given period of time, increases the rate of reaction |
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Does activation energy change the shape of the graph? |
No |
