1 / 16

Early Quantum Theory and Models of the Atom

Early Quantum Theory and Models of the Atom. Discovery of Electron. Cathode Rays. e/m measurement. Oil-Drop Experiment to find e. Blackbody Radiation. All objects emit radiation whose total intensity is proportional to the fourth power of the Kelvin temperature.

sallee
Download Presentation

Early Quantum Theory and Models of the Atom

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Early Quantum Theory and Models of the Atom

  2. Discovery of Electron

  3. Cathode Rays

  4. e/m measurement

  5. Oil-Drop Experiment to find e

  6. Blackbody Radiation

  7. All objects emit radiation whose total intensity is proportional to the fourth power of the Kelvin temperature.

  8. A blackbody is a body that would absorb all the radiation falling on it.

  9. Wien’s Law

  10. The Sun’s Surface Temperature Estimate the temperature of the surface of our Sun, given that the Sun emits light whose peak is in the visible spectrum at around 500 nm.

  11. Star Color Suppose a star has a surface temperature of 32,500 K. What color would this star appear?

  12. Energy distributed among the oscillating electric charges of the molecules is not continuous, but instead consists of a finite number of very small discrete amount, each related to the frequency of oscillation as:

  13. Planck’s Quantum Hypothesis Planck’s assumption suggests that the energy of any molecular vibration could be only some whole number multiple of hf:

More Related