dontworry48

30.10.2020 •

Chemistry

What occurs along a convergent plate boundary? volcanoes and ridges

earthquakes and hot spots

earthquakes and volcanoes

hot spots and ridges

Solved

Show answers

Ответ:

andybiersack154

25.01.2020

Chemistry

The answer is

$\huge 3.03 \times {10}^{ - 19} \: J$

Explanation:

From the question the energy levels are

n = 3 and n = 2

To calculate the energy released by the electron , we must first calculate the wavelength of the photon emitted by the electron during the transition.

To do so we use Rydberg's equation which is

$\frac{1}{ \lambda} = R \times ( \frac{1}{ {n}^{2} _2 - {n}^{2} _1 } ) \\$

where

$\lambda$ is the wavelength of the emitted photon

R is the Rydberg's constant

= 1.097 × 10^7 m-¹

n2 is the final energy level

n1 is the initial energy level

From the question

n2 = 2 , n1 = 3

So we have

$\frac{1}{ \lambda} = 1.097 \times {10}^{7} \times ( \frac{1}{ {2}^{2} } - \frac{1}{ {3}^{2} } ) \\ \frac{1}{\lambda} = 1.524 \times {10}^{6} \\ \\ \lambda = 6.56 \times {10}^{ - 7} m$

Next we use the formula

$E = \frac{hc}{ \lambda} \\$

To find out the energy emitted

Where

E is the energy

h is the Planck's constant

= 6.626 × 10-³⁴ Js

c is the speed of light which is

3.0 × 10^8 m/s

So we have

$E = \frac{6.626 \times {10}^{ - 34} \times 3.0 \times {10}^{8} }{6.56 \times {10}^{ - 7} } \\ = 3.03018 \times {10}^{ - 19}$

We have the final answer as

$3.03 \times {10}^{ - 19} \: J$

Hope this helps you

0,0(0 оценок)

Ask your question to the AI advisor

Ai-bot is an expert in any field and is the perfect companion for reliable and useful answers and advice on a variety of topics, including science, history, technology, art, sports, health, culture and more.

Ask your question

More tips

Answers on questions: Chemistry

Ask an AI advisor a question

I want advice

What occurs along a convergent plate boundary? volcanoes and ridges earthquakes and hot spots earthquakes and volcanoes hot spots and ridges