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188宝金博页面版:  critical potentials and the heat of dissociation of hydrogen as determined from its ultra-violet band spectrum：（关键的潜力和氢的热

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内容提示： I wish to express my thanks for the interest Professor H. S. Taylor andProfessor K. T. Compton have taken in this derivation.1 Wien's Displacement Law is proved by thermodynamic considerations and byexperiment in contradistinction to Wien's Radiation Formula, which is only provedexperimentally for small values of X.2 Coblentz, W. W., Bur. Standards Scient. Pap., No. 406 (1920).CRITICAL POTENTIALS AND THE HEAT OF DISSOCIATIONOFHYDROGENASDETERMINED FROMITS ULTRA-VIOLETBAND SPECTRUMBy ENOS E. WITMER*JZFFERSON...

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I wish to express my thanks for the interest Professor H. S. Taylor andProfessor K. T. Compton have taken in this derivation.1 Wien's Displacement Law is proved by thermodynamic considerations and byexperiment in contradistinction to Wien's Radiation Formula, which is only provedexperimentally for small values of X.2 Coblentz, W. W., Bur. Standards Scient. Pap., No. 406 (1920).CRITICAL POTENTIALS AND THE HEAT OF DISSOCIATIONOFHYDROGENASDETERMINED FROMITS ULTRA-VIOLETBAND SPECTRUMBy ENOS E. WITMER*JZFFERSON PHYSICAL LABORATORY, HARVARD UNIVZRSITYCommunicated March 15, 1926Lyman has found that under certain conditions of excitation the mix-ture of small proportions of hydrogen with argon causes the former to emita series of eleven groups of lines, lying between XX 1063 and 1670. Fiveof these groups he mentions in his book, "The Spectroscopy of the ExtremeUltra-Violet" (pp. 79-81), the others he. discovered more .recently. Asshown in figure 1, which is a reproduction of one of Lyman's plates, thesegroups are at approximately equal intervals on a wave-length scale, ex-cept that one group is missing or very faint. Subsequently in studying andmeasuring Lyman's plates another group was found at the long wave-length end of the series. This group is very faint and has only two lines,whereas all the other groups have at least five or six each. If we numberthe groups 0, 1, 2, etc., beginning with the group of shortest wave-lengthand include the missing group, the faint group at the other end of the seriesis group 12 and the group that is missing or very faint is group 3. Thezero group is partly obscured by one of the two extremely intense argonlines corresponding to its resonance potential of 11.6 volts; The otherargon line is on the short wave-length side of this group.The analysis made by the writer indicates that these groups constitutea one-dimensional series of bands, which have a common vibrationalstate in the upper level. We shall designate these bands the Lyman bandsof hydrogen. They are degiaded toward the red, and are apparentlyQ branches with perturbations near the origin. The one-dimensional char-acter of the series seems to have the following explanation. Under theconditions of excitation the energy imparted to a hydrogen molecule islimited to 11.6 volts, the resonance potential of argon. This is justsufficient to raise the hydrogen molecule from the normal level with zeroPROC. N. A. S. 238 PHYSICS: E. E. WITMER

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188宝金博页面版:  critical potentials and the heat of dissociation of hydrogen as determined from its ultra-violet band spectrum：（关键的潜力和氢的热

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188宝金博页面版: critical potentials and the heat of dissociation of hydrogen as determined from its ultra-violet band spectrum：（关键的潜力和氢的热

188宝金博页面版: critical care focus 9 gut：（急救护理重点9肠道）

188宝金博页面版: critical care focus 6 cardiology：（6心脏病急救护理重点）

188宝金博页面版: contemporary catholic school context, identity and diversity：（现代天主教学校背景、身份和多样性）

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188宝金博页面版: computer incident response and product security：（计算机事件响应和产品安全）

188宝金博页面版: compiling functional languages：（编译函数式语言）

188宝金博页面版: code generation techniques：（代码生成技术）

188宝金博页面版: clinical pharmacokinetic and pharmacodynamic drug interactions associated with antimalarials：（临床药代动力学和药效的药物相互作用与

188宝金博页面版: classroom authority theory, research, and practice：（课堂权威的理论、研究和实践）

188宝金博页面版:关于我们

188宝金博页面版:帮助中心

188宝金博页面版:关注我们

188宝金博页面版

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188宝金博页面版:更多相关文档

188宝金博页面版:  critical potentials and the heat of dissociation of hydrogen as determined from its ultra-violet band spectrum：（关键的潜力和氢的热

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188宝金博页面版: critical potentials and the heat of dissociation of hydrogen as determined from its ultra-violet band spectrum：（关键的潜力和氢的热

188宝金博页面版: critical care focus 9 gut：（急救护理重点9肠道）

188宝金博页面版: critical care focus 6 cardiology：（6心脏病急救护理重点）

188宝金博页面版: contemporary catholic school context, identity and diversity：（现代天主教学校背景、身份和多样性）

188宝金博页面版: constructing private governance the rise and evolution of forest, coffee, and fisheries certification：（构建私人治理森林的崛起和发

188宝金博页面版: computer incident response and product security：（计算机事件响应和产品安全）

188宝金博页面版: compiling functional languages：（编译函数式语言）

188宝金博页面版: code generation techniques：（代码生成技术）

188宝金博页面版: clinical pharmacokinetic and pharmacodynamic drug interactions associated with antimalarials：（临床药代动力学和药效的药物相互作用与

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188宝金博页面版:关于我们

188宝金博页面版:帮助中心

188宝金博页面版:关注我们

188宝金博页面版:  critical potentials and the heat of dissociation of hydrogen as determined from its ultra-violet band spectrum：（关键的潜力和氢的热

188宝金博页面版: critical potentials and the heat of dissociation of hydrogen as determined from its ultra-violet band spectrum：（关键的潜力和氢的热

188宝金博页面版: critical care focus 9 gut：（急救护理重点9肠道）

188宝金博页面版: critical care focus 6 cardiology：（6心脏病急救护理重点）

188宝金博页面版: contemporary catholic school context, identity and diversity：（现代天主教学校背景、身份和多样性）

188宝金博页面版: constructing private governance the rise and evolution of forest, coffee, and fisheries certification：（构建私人治理森林的崛起和发

188宝金博页面版: computer incident response and product security：（计算机事件响应和产品安全）

188宝金博页面版: compiling functional languages：（编译函数式语言）

188宝金博页面版: code generation techniques：（代码生成技术）

188宝金博页面版: clinical pharmacokinetic and pharmacodynamic drug interactions associated with antimalarials：（临床药代动力学和药效的药物相互作用与

188宝金博页面版: classroom authority theory, research, and practice：（课堂权威的理论、研究和实践）