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How much energy does a hydrogen atom give up?

A Hydrogen atom, treated as a point mass, is confined to an infinite one-dimensional square well of width 1.0nm. How much energy does it have to give up to fall from the level with 5 to the lowest energy level? The answer needs to be in Joules.

This problem deals with quantum part of Physical chemistry.

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Mass of the hydrogen atom m = 1.6727*10-27 kg
Planks constant h = 6.62*10-34
Width of square well L = 1.0 nm = 10-9 m
Energy level of a particle enclosed in ...

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Solution provides answer and calculations.

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