14.4 Collision Theory and the Arrhenius Equation
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| COLLISION THEORY (Requirements for a Chemical Reaction) |
|---|
| 1. Collision |
| 2. Proper orientation of reactant molecules |
| 3. Sufficient energy for a reaction to occur |
*An increase in temperature increases the collision frequency and the percentage of high energy collisions.
Rate Constants and the Arrhenius Equation
| Factors Affecting the Rate Constant |
|---|
| The rate constant, k, increases with increasing temperature. |
| The rate constant, k, increases with decreasing activation energy (by adding a catalyst). |
If the rate constant of a reaction is 0.0014s-1 at 25°C for a reaction with an activation energy of 40kJ/mol, then what is the value of the rate constant at 50°C? (R = 8.314J/mol•K)