College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Chapter 28, Problem 47AP

(a)

To determine

The energy is required to cause an electron in hydrogen to move from the n=1 state to the n=2 .

(b)

To determine

The minimum temperature of the heated hydrogen gas.

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(a) How much energy is required to cause an electron in hydrogen to move from the n = 2 state to the n = 5 state? in J(b) Suppose the atom gains this energy through collisions among hydrogen atoms at a high temperature. At what temperature would the average atomic kinetic energy 3/2 * kBT be great enough to excite the electron? Here kB is Boltzmann's constant. in K
(a) How much energy is required to cause an electron in hydrogen to move from the n = 2 state to the n = 5 state?in J(b) Suppose the atom gains this energy through collisions among hydrogen atoms at a high temperature. At what temperature would the average atomic kinetic energy 3/2 * kBT be great enough to excite the electron? Here kB is Boltzmann's constant. in K
The population ratio between two energy levels ni nj separated in energy by: A E = E₁ - Ej with AE = 1.1×10-22 J is 0.84. That is: ni = 0.84 with AE = 1.1×10-22] nj Remember the Boltzmann equation for the population of particles in state i with energy Ei at temperature T is: N n₁ = = e Z What is the temperature of the system (use two sig figs)? 4.0 ✓ K
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