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3 years ago

Bohr found experimental evidence for his atomic model by studying _____.

2 answers:

6 0

For the answer to te question above, it is a. The Electron Cloud.
For additional information, The Electron Cloud is an informal term in physics. It is used to describe where electrons are when they go around the nucleus of an atom.
I hope my answer helped you.

frozen [14]3 years ago

5 0

Answer:

b) line spectra

Explanation:

The model of the atom as given by Rutherford was modified by Bohr. According to Rutherford's model, the electrons that orbit the nucleus electromagnetic radiation. As a result they lose energy and had to collapse into the nucleus, thereby making the atom unstable.

Bohr corrected that by proving that electrons revolve around the nucleus only in certain fixed orbits, with a specific energy. They can jump from one to another and lose or gain energy by emitting or absorbing energy in that process.

Electron cloud is the region where the electrons are most likely to occur. This was proposed by Schrodinger.

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Jin knows that the initial internal energy of a closed system is 78 J and the final internal energy is 180 J. He also knows that

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As we know by the first law of thermodynamics

$Q = \Delta U + W$

here we know that

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$\Delta U = 180 - 78 = 102 J$

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now we can say that heat will be given as

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now here we can say that Jin does the error in his first step while calculation of change in internal energy as he had to subtract it while he added the two energy

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<em>B )For step 1, he should have subtracted 78 J from 180 J to find the change in internal energy. </em>

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