The document discusses the Arrhenius equation, which describes the temperature dependence of chemical reaction rates. It was proposed in 1889 by Svante Arrhenius based on work by Jacobus Henricus Van't Hoff. The Arrhenius equation relates the rate constant of a reaction to absolute temperature, activation energy, gas constant, and frequency factor. It is widely used to study how temperature, catalysts, and other factors affect reaction rates and diffusion. Raising the temperature by 10 degrees Celsius roughly doubles the rate constant, showing its direct proportionality to temperature. A catalyst also lowers the activation energy and increases the rate. In conclusion, the Arrhenius equation demonstrates that the rate constant depends on temperature

1. BIO CHEMICAL REACTION
ENGINEERING
“TheArrhenius Equation”

2. Introduction
 It is a formula for the temperature
dependence of reaction rates.
 Proposed by Mr. Svante Arrhenius in 1889
based on the Dutch chemist, Mr. Jacobus
HenricusVan’t Hoff.

3.  It gives the dependence of rate constant(k)
of a chemical reaction on the absolute
temperature.

4. Mr. Jacobus Henricus Van’t
Hoff

5. Purposes of Arrhenius equation:
 Verify the effect ofTemperature, catalyst, Gas
constant.
 Temperature,T
To fit, this should be in Kelvin.
 The gas constant, R
Which comes from the PV=nRT

6.  Activation energy, E
Minimum energy for reaction to occur.
 The e=2.7182
 The frequency factor, A:
A term which includes factors like frequency
of collisions and their orientations.

7. Uses of Arrhenius equation:
 Used extensively to describe the effect of
temperature;Thermal death.
 To determine how the reac. rates and
diffusion changes with temperature.

8. Effect of Temeperature:
 On raising the temperature atleast for 10
degree centigrade, the rate constant gets
doubled.
 Therefore, we can say that, the rate constant
is directly proportional to the temperature.

9. Effect of catalyst:
 A catalyst provides route for the reaction
with a lower activation energy.
 On adding the catalyst..

10. Frequency factor
 The frequency factor A is considered to be a
constant and has very less effect on the
varience of rate constant.

11. Conclusion:
 Therefore, with the help of the
Arrhenius equation we came to
know that, the rate constant is
also dependent upon the
temperature, gas constant,
catalyst etc..

12. Thank you.