The equipment used for aviation communications emits high‑frequency radiowave energy with a wavelength of 0.250 km. What is the energy of exactly one photon of this radiowave radiation??=___________________ JWhat is the energy of one mole of this radiowave radiation??=______________ J/mol

Question
Asked Oct 27, 2019
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The equipment used for aviation communications emits high‑frequency radiowave energy with a wavelength of 0.250 km. 

What is the energy of exactly one photon of this radiowave radiation?

?=___________________ J

What is the energy of one mole of this radiowave radiation?

?=______________ J/mol

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Expert Answer

Step 1

The energy of a photon of a radiation is expressed as:

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h c E Where, E energy of a photon Planck's constant = 6.626 x 1034 J/s h c speed of light = 3 x 108 m/s A = wavelength

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Step 2

And the energy of one mole of the radiation = 6.022 × 1023 × energy of a photon

Given,

Wavelength of radiowave radiation = 0.250 km = 250 m  

We know that, 1 km = 1000 m

⸫ wavelength in m = 0.250 × 1000 m = 250 m

The energy of one photon of this radiowave radiation can be calculated as:

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h c Е- λ 6.626 х10-34 ]/sx 3x108 m/s Е- 250 m E 3D 7.95 х 10-28 J

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Step 3

The energy of one mole of this radiowave&n...

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E 6.022 x 1023 x energy of a photon E 6.022 x 1023 x 7.95 x 10-28 J E 4.79 x 104 J

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