Arrhenius Kinetics nader makarious

Biography

Svante August Arrhenius was born on February 19, 1859, the son of Svante Gustaf Arrhenius and Carolina Christina Thunberg. His ancestors were farmers; his uncle became Professor of Botany and Rector of the Agricultural High School at Ultuna near Uppsala and later Secretary of The Swedish Academy of Agriculture. His father was a land surveyor employed by the University of Uppsala and in charge of its estates at Vik, where Svante was born. The family moved to Uppsala in 1860. The boy was educated at the Cathedral school where the rector was a good physics teacher. From an early age Svante had shown an aptitude for arithmetical calculations, and at school he was greatly interested in mathematics and physics. In 1876 he entered the University of Uppsala, studying mathematics, chemistry and physics. The practical instruction in physics was not of the best, and in 1881 he went to Stockholm to work under Professor E. Edlund at the Academy of Sciences.

http://nobelprize.org/nobel_prizes/chemistry/laureates/1903/arrhenius-bio.html

Arrhenius equatoin

k=Ae^(-E_a^/RT)

ln(K) = ln Ae^(-E_a^/RT)

= ln A + ln e^(-E_a^/RT)

ln (K) = ln(A)- (Ea/R) (1/T)

ln (K) = (-Ea/R) (1/T) + ln A

from the given data at

http://web.lemoyne.edu/~giunta/classicalcs/arrkin.html

microsoft excel will be used to graph this date twice as below

First graph

Shows the relation between rate of the reaction and temprutre in Kelvin

Second graph

Will apply Arrhenius equation and graph the relatoin between 1/T in Kelvin and ln(K).

The first graph shows certain kind of relation,but doesn’t give enough information neither about the reaction nor the activation engery Ea which is very important in all chemical reactions.

The second graph (using Arrheius equation) shows a direct and inverse relation between ln (K) and (1/T), also from the graph we can figure out the activation energy Ea buy taking the slop (Y1-Y2/X2-X1)