Interpretation : The influence of Planck in the development of modern atomic theory is to be explained.
Concept Introduction : Planck discussed his theory of energy quantization.
Planck attempted to explain why as a body's temperature rises, it first appears black, then red, then yellow, and finally white.
Answer to Problem 49A
Planck influenced the development of modern atomic theory by finding the quantization of energy through radiation.
Explanation of Solution
Planck discovered that if he assumed that a body's energy changes only in tiny discrete units, or quanta, he could explain the color changes.
Planck demonstrated mathematically that a body's ability to absorb or emit radiation is inversely related to the frequency of the radiation.
The amount of radiation energy is given as
Where
Planck was the first person to introduce the change in the body due to radiation.
Chapter 5 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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