Reaction Rate Constant using Arrhenius Equation – formula – examples – calculation – calculator

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[insert_php]
$result = $A = $E = $T = $temp = $temp1 = 1;
$R = 0.008314;

if(isset($_POST[‘submit’]))
{
$A = $_POST[‘A’];
$E = $_POST[‘E’];
$T = $_POST[‘T’];

}
unset($_POST[‘submit’]);

$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.

Frequency Factor (A)Sec^-1
Activation Energy (Ea)KJ mol^-1
Temperature (T)K
Result: Reaction Rate Constant (K)[insert_php] echo $result; [/insert_php]Sec^-1

Formula of Reaction Rate Constant calculator

K = A × e (-Ea / (R×T))

Where,

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;

Formula: 

A*exp(Ea/R*T);

mul=R*T;

Div=Ea/mul;

pow=exp(div);

result=A*pow;

reult=1.3293369244494E-39;

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