CHEMICAL KINETICS IN THE PAST FEW DECADES
CHEMICAL KINETICS IN THE PAST FEW DECADES
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DOI:
10.1126/science.125.3250.679
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发表时间:
1957-01-01
期刊:
影响因子:
56.9
通讯作者:
HINSHELWOOD, C
中科院分区:
文献类型:
--
作者:
HINSHELWOOD, C
The task before me is to speak of the evolution during the last few decades of the branch of physical chemistry which treats of the intimate mechanism of chemical reactions. The present circumstances seem to call for a survey taken from a rather more personal point of view than is usually desirable or proper. Hence, it is perhaps suitable that I should give some account of the lines of thought and of the accidents which have determined the course of the work in which, with others, I have taken part. Nobody, I suppose, could devote many years to the study of chemical kinetics without being deeply conscious of the fascination of time and change: this is something that goes outside science into poetry, but science, subject to the rigid necessity of always seeking closer approximations to the truth, itself contains many poetical elements. There are many ways in which the mysteries of chemical change might begin to impress themselves on a young chemist. I will mention one: it belongs to practical life and is a real example. Explosives have to be tested for stability, and this is done by measuring their decomposition at a suitably high temperature. Phenomena of great interest appear, revealing a remarkably large influence of temperature, a great acceleration of the rate if the solid liquefies, and various striking catalytic effects. Many major problems present themselves, Sir Cyril Hinshelwood is Dr. Lee's professor of physical and inorganic chemistry at the University of Oxford, Oxford, England. This article is based on the lecture he· gave when he was awarded the Nobel prize in chemistry for 1956, a prize that he shared with Nikolai N. Semenov. It is reprinted here with the Permission of the Nobel Foundation.