First-Order Reaction Rate Constant

A = s-1
A = min-1
A = h-1
EA/R = K
EA = kJ mol-1
EA = kcal mol-1
T = K
T = °C
B =
TR = K
k = s-1
k = min-1
k = h-1


The results have been rounded to significant digits.

This calculator can be used to calculate Temperature dependant values of first-order reaction Rate. A first-order reaction depends on the concentration of one reactant.

To perform the calculation, the pre-exponential factor A and the temperature T must be given. For a temperature dependence (T/TR)B, the reference temperature TR and the exponent B must also be given. For a temperature dependence exp(-EA/RT) you have to add input for EA/R or EA.

How to Use:
Type the values of the parameters from the equation into their fields with the corresponding unit. The calculator will show corresponding conversion unit for the input data. Fields of parameters that are not needed should be left blank. Use the “reset” button to reset your calculation.

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