Problem: If light has a wavelength of 468 nm, what is the energy of this light expressed with units of kJ/mol?

FREE Expert Solution

We’re being asked energy of this light in kJ/mol with a wavelength of 468 nm. 

Recall that the energy of a photon (E) is given by:


E=hv (1)


where:

h = Planck’s constant (6.626 × 10–34 J • s)

v = frequency (in s–1)


Also, recall that the frequency (v) and wavelength (λ) are related:


λ=cv (2)


where:

c = speed of light (3.0 × 108 m/s)


View Complete Written Solution
Problem Details

If light has a wavelength of 468 nm, what is the energy of this light expressed with units of kJ/mol?

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the The Particle Nature of Light concept. You can view video lessons to learn The Particle Nature of Light. Or if you need more The Particle Nature of Light practice, you can also practice The Particle Nature of Light practice problems.