Bond Energy and Wavelength Calculations

Bond Energy and Wavelength Calculations

Assessment

Interactive Video

Physics, Chemistry, Science

11th - 12th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains how to calculate the maximum wavelength of light required to break a carbon-carbon triple bond by absorbing a single photon. It starts by discussing the energy needed to break a mole of such bonds and then converts this energy to break a single bond using Avogadro's number. The tutorial then applies the E=HC/λ formula to find the wavelength of light in meters and converts it to nanometers for convenience, resulting in a wavelength of 143 nanometers, which falls in the UV light range.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial energy given to break a carbon-carbon triple bond?

839 joules per bond

839 kilojoules per bond

839 joules per mole

839 kilojoules per mole

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What constant is used to convert moles to individual bonds?

Boltzmann's constant

Speed of light

Avogadro's number

Planck's constant

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many bonds are there in one mole according to Avogadro's number?

6.022 x 10^21

6.022 x 10^23

6.022 x 10^22

6.022 x 10^24

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the energy in joules required to break a single carbon-carbon triple bond?

1.39322 x 10^-19 joules

1.39322 x 10^-18 joules

1.39322 x 10^-17 joules

1.39322 x 10^-20 joules

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which formula is used to calculate the wavelength of light that can break a bond?

E = kT

E = hc/λ

E = hv

E = mc^2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of Planck's constant used in the calculation?

6.626 x 10^-34 joule-seconds

6.626 x 10^-33 joule-seconds

6.626 x 10^-35 joule-seconds

6.626 x 10^-32 joule-seconds

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the speed of light used in the calculation?

3.00 x 10^6 meters per second

3.00 x 10^8 meters per second

3.00 x 10^9 meters per second

3.00 x 10^7 meters per second

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