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lawyer [7]
2 years ago
5

A rectangular corral of widths Lx = L and Ly = 2L contains seven electrons. What is the energy of (a) the first excited state, (

b) the second excited state, and (c) the third excited state of the system? Assume that the electrons do not interact with one another, and do not neglect spin. State your answers in terms of the given variables, using h and me (electron mass) when needed.

Chemistry
1 answer:
DiKsa [7]2 years ago
3 0

Answer:

See explaination

Explanation:

The invariant mass of an electron is approximately9. 109×10−31 kilograms, or5. 489×10−4 atomic mass units. On the basis of Einstein's principle of mass–energy equivalence, this mass corresponds to a rest energy of 0.511 MeV.

Check attachment for further solution to the exercise.

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2 years ago
1. How many molecules are in 240g of sulfuric acid?
Soloha48 [4]

Answer:

14.8 × 10²³ molecules

Explanation:

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Mass of sulfuric acid = 240 g

Number of molecules = ?

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The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

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18 g of water = 1 mole = 6.022 × 10²³ molecules of water

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Number of moles =  240 g/ 98 g/mol

Number of moles = 2.45 mol

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3 0
3 years ago
Which statement correctly describes the relationship between thermal energy and particle movement?
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As thermal energy increases and there is more particle movement.

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  • It is also termed as heat energy of a system or object
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So, from this, we can conclude that as thermal energy increases and there is more particle movement.

Learn more about thermal energy here:

brainly.com/question/21162439?referrer=searchResults

brainly.com/question/11278589?referrer=searchResults

5 0
2 years ago
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