Open AccessCharacteristic frequency and atomic number
Publication year - 1917
Publication title -
proceedings of the royal society of london. series a, containing papers of a mathematical and physical character
Language(s) - English
Resource type - Journals
eISSN - 2053-9150
pISSN - 0950-1207
DOI - 10.1098/rspa.1917.0052
Subject(s) - constant (computer programming) , thermodynamics , specific heat , work (physics) , atomic physics , function (biology) , planck constant , atomic units , chemistry , atomic number , volume (thermodynamics) , physics , quantum , quantum mechanics , evolutionary biology , biology , computer science , programming language
Recent work on the specific heat of chemical elements in the solid state has led to important conclusions with regard to the values of the atomic heat at constant volume. The curves showing the variation of atomic heat with temperature are all of the same form, and any given curve can be transformed into any other merely by altering the scale on which the temperature is plotted. This implies that the atomic heat Cv is a function of the temperature T, dependent on a single parameter, the function being the same for different elements. Thus Cv = F (Θ/T), where Θ is a certain temperature characteristic of the element in question. According to the quantum theory Θ =βv =hv/k , wherev is the characteristic atomic frequency,h is Planck’s constant, 6·558 x 10-27 ,k is the gas constant for a single molecule, 1·372 x 10-16 .