國立臺灣大學物理系所Su, Der-RuennDer-RuennSu2006-09-272018-06-282006-09-272018-06-281995-04http://ntur.lib.ntu.edu.tw//handle/246246/20060927120014007684Activation energy (A-W) is regarded as a requirement for an energy-conserved process or reaction to initiate atomic exchanges. Stimulation of this kind, with the requirement of such an extra type of energy, occurs in many situations. We give a simple review with emphasis on hydrogen chemisorption on a solid surface. 1Ve attribute the extra energy as being used to activate the atom or molecule to pass through an AV static barrier. In a statistical approach, we find that XV can exist only if there are tunnelling states. AV is calculated to have discrete increases as the temperature increases. \Ve conclude that for high temperatures, black-body radiation occurs for this atomic desorption.application/pdf331637 bytesapplication/pdfzh-TWjournal articlehttp://ntur.lib.ntu.edu.tw/bitstream/246246/20060927120014007684/1/181.pdf