Unit 4 Chemistry - Kinetics

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Rate Reaction Equations
E.g. CH3COCH3 + I2 ---> CH2ICOCH3 + HI = Rate = K[CH3COCH3][H+]
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Finding The Rate Constant, K
E.g. 2NO + O2 ----> 2NO2 = Rate=k[NO]2[O2] = 28x10-4 = k[2x10-3]2 x [1x10-3], k=28x10-4/(2x10-3)2(1x10-3)
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The Effect of Temperature on K
The rate constant is the part of the equation that changes when the temperature changes, the larger the value of K, the faster the reaction will happen.
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Why the Rate Constant depends on temperature
Temperature is the measure of kinetic energy. Particles will only react together if their collisions have enough energy to start bond breaking, this is called the Activation Energy.
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Rate Determining Step
A + B + C ---> Y + Z - Any reaction that involves any of the species in the equation will be faster than the ones that aren't.
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Other cards in this set

Card 2

Front

E.g. 2NO + O2 ----> 2NO2 = Rate=k[NO]2[O2] = 28x10-4 = k[2x10-3]2 x [1x10-3], k=28x10-4/(2x10-3)2(1x10-3)

Back

Finding The Rate Constant, K

Card 3

Front

The rate constant is the part of the equation that changes when the temperature changes, the larger the value of K, the faster the reaction will happen.

Back

Preview of the back of card 3

Card 4

Front

Temperature is the measure of kinetic energy. Particles will only react together if their collisions have enough energy to start bond breaking, this is called the Activation Energy.

Back

Preview of the back of card 4

Card 5

Front

A + B + C ---> Y + Z - Any reaction that involves any of the species in the equation will be faster than the ones that aren't.

Back

Preview of the back of card 5

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