Energy States of Chemical Species: Two Important Postulates of Quantum Theory
Energy States of Chemical Species: Two Important Postulates of Quantum Theory
Energy States of Chemical Species: Two Important Postulates of Quantum Theory
-Quantum theory was first proposed by Max Planck in 1900. -It was to explain the properties of radiation emitted by heated bodies. -Later extended to rationalize other types of emission and absorption processes.
So that, total internal energy states of molecules: Eint = Eelect. + Evib. + Erot. -The permitted energy levels of Eelect.,Evib. & Erot. are intimately related to the structure of the molecule.
-No two kinds of molecules possess identical Eelect.,Evib. & Erot. -Ground state: The lowest energy state of an atom or molecule.(generally at room Temp.) -Excited state: Higher energy states.