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BaLLatris [955]
3 years ago
15

PLZ HURRY

Chemistry
1 answer:
vodomira [7]3 years ago
7 0
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Why is the expectation value of the energy associated with the 1-D "particle-in-a-box" the same as the eigen value of the Hamilt
Veronika [31]

Answer: The average potential energy of the PIB is 0 irrespective of the wave function.

Explanation:

⟨H⟩=⟨KE⟩+⟨V⟩

the nn quantum number

⟨KE⟩=(π^2 ℏ^2)/(2mL^2 )

the average kinetic energy of the wavefunction is dependent on

⟨V⟩=∫sin(kx)0sin(kx)dx=0

The average potential energy of the PIB is 0 irrespective of the wave function.

⟨H⟩=⟨KE⟩=(π^2 ℏ^2)/(2mL^2 )

4 0
3 years ago
The human body has several major systems. Most body systems have multiple functions. Which of the following is NOT a major funct
tensa zangetsu [6.8K]

Answer:D

Explanation:

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8 0
3 years ago
The formation of a solid, also known as a _____, is an indication of a chemical change.
elena-14-01-66 [18.8K]

Answer: precipitate

Explanation: Chemical change is a change in which the chemical composition of the atoms changes. The following changes are seen when chemical reaction takes place:

1) Release or absorption of heat

2) Formation of solid or a precipitate

2AgNO_3(aq)+BaCl_2(aq)\rightarrow 2AgCl(s)+Ba(NO_3)_2(aq)

3) Change in color

4) Production of gas

4 0
3 years ago
Read 2 more answers
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Answer:

Ammonia is a compound.

Explanation:

A compound is composed of two or more separate elements. Ammonia is NH3, which happens to be two different elements.

6 0
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Why do scientists use scientific notation to represent very small and large numbers?
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to simplify the number by using fewer digits

Explanation:

6 0
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