Arrhenius Equation The rate and E is the activation energy for the A graph of rate against absolute temperature is exponential as shown below Temp
arrhenius
One straight line is obtained by plotting lnk against 1/T after measuring the reaction rate at different temperatures As is shown in Equation 2, the slope represents
c cy c
the activation energy, which must be overcome to produce a chemical reaction The collision If we graph the value of the rate constant, k, versus the Kelvin
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known as the Arrhenius equation According to this, a where R is the gas constant and E is the activation energy The an Arrhenius plot of in h against 11T
Laidler ArrheniusEqn
4) Once you know the gradient, you can use it to find both the activation energy and the Arrhenius constant Example: The graph below shows an Arrhenius plot
Arrhenius Equation
Arrhenius (1889) showed that, under certain conditions, such a plot should yield a straight line with a slope proportional to the activation energy of the reaction