Samuel Colville Lind - father of modern radiation chemistry, chemical reaction kinetics

Samuel Colville Lind - father of modern radiation chemistry

Samuel Colville Lind - father of modern radiation chemistry

Biography & contributions

Samuel Colville Lind was born on June 15, 1879 – died on February 12, 1965. Lind was distinguished scientist among other scientist for his work on the kinetics of chemical reactions of various kinds.

His first and foremost research works was on the kinetics of the reaction between hydrogen and chlorine, extraction and refinement of radium from carnotite ore.

He showed that the amount of reaction that occurred was directly proportional to the ionization produced in the gas mixture. Lind also showed that recoil atoms induce chemical action proportional to the ionization they produce and he carried out a number of investigations on the influence of inert gases on chemical reactions induced by radiation, finding that reactions are accelerated as a result of the additional amount of ionization produced in the inert gas.

Lind was the first to recognize that chemical reaction is initiated at the centers at which the ions are neutralized. He concluded that in the hydrogen-oxygen reaction, both the hydrogen and oxygen molecules are separately activated by absorption of energy from the alpha rays.

He found that about one-half of the energy released by an alpha particle produces a positively charged molecule, by eliminating an electron.

Lind confirmed that diamonds exposed to alpha radiation acquire a brilliant green color and found that the coloration could be conveniently produced by exposure to radon gas.

He was awarded many awards and medals like Nichols Medal of the New York section of the American Chemical Society in the year of 1926, Priestley Medal from American Chemical Society in the year of 1952.

Chemical kinetics/ reaction kinetics

Chemical kinetics also referred as reaction kinetics, which is nothing but the study of the speed with which a chemical reaction occurs and the factors that affect this speed.

Chemical kinetics includes investigations of how different experimental conditions can influence the speed of a chemical reaction and yield information about the reaction's mechanism and transition states, as well as the construction of mathematical models that can describe the characteristics of a chemical reaction. Chemical kinetics deals with the experimental determination of reaction rates from which rate laws and rate constants are derived.

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