$R = 0.008314;
$A = $_POST[‘A’];
$E = $_POST[‘E’];
$T = $_POST[‘T’];
$temp = $R * $T;
$E = $E* -1;
$temp = $E / $temp;
$temp1 = exp ($temp);
$result = $A * $temp1;[/insert_php]
Reaction Rate Constant using Arrhenius Equation – formula – examples – calculation – calculator
In 1889, a researcher Svante Arrhenius proposed the Arrhenius equation. Arrhenius equation relates the reaction rate with temperature.
According to Arrhenius equation, an increase of temperature of a reaction results in an increase in the reaction rate.
Normally, the reaction rate is doubled when we increase the temperature to 10 oC.
Table of Contents
Formula of Reaction Rate Constant calculator
K = A × e (-Ea / (R×T))
Frequency Factor (A), Activation Energy(Ea), Temperature(T)
K = Rate Constant, A = Frequency Factor, Ea = Activation Energy, R = Universal Gas Constant (8.314 × 10-3 kJ mol-1 K-1), T = Temperature
Example of Reaction Rate Constant calculator
e=2.718; R=0.008314; A=2; Ea=3; T=4;