EXERCISE 13.1-2 Photon-Momentum Recoil. Determine the recoil velocity imparted to a 198 Hg atom that emits a photon of energy 4.88 eV. Compare this with the root-mean-square thermal velocity v of the atom at a temperature T = 300° K (this is obtained by setting the average kinetic energy equal to the average thermal energy, mv² = kT, where k = 1.38 x 10-23 J/K is Boltzmann's constant).

EXERCISE 13.1-2 Photon-Momentum Recoil. Determine the recoil velocity imparted to a 198 Hg atom that emits a photon of energy 4.88 eV. Compare this with the root-mean-square thermal velocity v of the atom at a temperature T = 300° K (this is obtained by setting the average kinetic energy equal to the average thermal energy, mv² = kT, where k = 1.38 x 10-23 J/K is Boltzmann's constant).

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.2DP

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