…In relation to reaction kinetics, a notable advance in the 20th century was the expansion of the range of reaction rates that could be quantitatively handled. The flow technique was limited to reactions with half-lives of about 10 −3 s, but the flash technique (around 1950) developed by Ronald George Wreyford Norrish (1897-1978) and George Porter (1920- ) made it possible to handle reactions with half-lives of about 10 −6 s, and the relaxation technique developed by M. Eigen made it possible to handle reactions with half-lives of 10 −8 to 10 −9 s, and the details of ionic reactions in aqueous solutions and explosive reactions in the gas phase became clear. Originally, chemical reaction theory and chemical structure theory had developed on their own paths, but the two have gradually become closer. … *Some of the terminology that mentions "Norrish, RGW" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…反応速度論に関連して,20世紀における顕著な進歩は定量的に取り扱いうる反応速度の幅の拡大であった。流通法flow techniqueでは半減期が10-3s程度の反応が限界であったが,ノリッシュRonald George Wreyford Norrish(1897‐1978),ポーターGeorge Porter(1920‐ )の開発になる閃光法(1950ころ)では半減期10-6sくらいの,M.アイゲンの開発した緩和法では10-8~10-9sの反応が取り扱えるようになり,水溶液中のイオン反応,気相中の爆発反応などの詳細が明らかになってきた。もともと化学反応論と化学構造論とは独自の発展の道を歩んできたが,この二つはしだいに接近するようになってきた。… ※「Norrish,R.G.W.」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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