CHEM 112 Lecture Notes - Lecture 1: Classical Mechanics, Photon, Binding Energy
28 Apr 2016
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For larger objects and macroscopic properties of molecules: acceleration of falling object, distance a cannon ball would travel when fired with a certain initial velocity and elevation, pressure exerted by a gas. Could not be used to explain forces that hold atoms together: phenomena at the atomic and molecular level are not governed by the laws of classical physics. 1900 new era in physics started by max planck. Spectrum of radiation given off by a heated body. At lower temperatures red light is mainly emitted, as the increases yellow and blue light become mixed with the red giving. A red-hot object has a spectrum that peaks around 675 nm, white-hot object has a spectrum that has comparable intensities for wavelengths in the visible region. Classical theory predicts continuous increase of intensity with wavelength. Energy, like matter, is discontinuous. temperature white light. whereas a all.
