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For the wave of light you generated in the Part B, calculate the amount of energy in 1.0 mol of photons with that same frequency (1.2×1010 Hz ) and wavelength (0.026 m ). Recall that the Avogadro constant is 6.022×1023 mol−1.

Respuesta :

skyluke89

Answer:

4.79 J

Explanation:

The energy of a single photon is given by

[tex]E=hf[/tex]

where

[tex]h=6.63\cdot 10^{-34} Js[/tex] is the Planck constant

f is the frequency of the photon

Here we have

[tex]f=1.2\cdot 10^{10} Hz[/tex]

so the energy of one photon is

[tex]E_1=(6.63\cdot 10^{-34})(1.2\cdot 10^{10})=7.96\cdot 10^{-24} J[/tex]

Here we have 1 mol of photons, which contains

[tex]N=6.022\cdot 10^{23}[/tex] photons (Avogadro number). So, the total energy of this mole of photons is:

[tex]E=NE_1 = (6.022\cdot 10^{23})(7.96\cdot 10^{-24})=4.79 J[/tex]

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