CHEM 1212 Chapter Notes - Chapter 14: Arrhenius Equation, Reaction Step, Activated Complex
Document Summary
Chapter 14. 5 the effect of temperature on reaction rate. The temperature dependence of the reaction rate is contained in the rate constant, k. An increase in temperature usually results in an increase in k. The modern form of the arrhenius equation shows the relationship between the rate constant (k) and the temperature in kelvin (t). The activation energy (ea) is an energy barrier or hump that must be surmounted in order for the reactants to transform into products. The frequency factor (a) is the number of times that the reactants approach the activation barrier per unit time. The gas constant (r) is a constant that comes from the equation pv=nrt which related the pressure, volume and temperature of a particular number of moles of gas. Activation energy (ea) is the minimum energy needed for the reaction to occur. E has a value of 2. 71828 and is a mathematical constant. The frequency factor (a) is a constant.
