EBK CHEMICAL PRINCIPLES
8th Edition
ISBN: 9781305856745
Author: DECOSTE
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Textbook Question
Chapter 20, Problem 36E
The earth receives
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How is electricity generated in a photovoltaic system?
From Einstein’s most famous equation, how much energy in British therrmal unit (btu) can theoretically be released from 38 moles of hydrogen gas? [1 btu=1055.056 joules], [1 Joule = 1kg m²/s²]
For a Hydrogen Atom these energies can be calculated by the following equation:
1
Latulan he - - ATelacirun- R
n
Ru-2.179 x 10-18J
(Hydrogen atom)
The Helium Ion, Het, has energy levels similar to those of the hydrogen atom. The helium ion, like the hydrogen atom, has only one electron. This eliminates electron-electron interactions, and allows us to calculate the energies of the electron in each of the energy levels (n = 1, 2, 3 .) of the helium ion:
8.7149 x 10-18J
Eçloetron -
RH - 8.7149 x 1018J
n
(Helium Iou)
The energy released as a photon (Ephoton), when the electron in the helium ion (He*) transitions from higher energy levels to lower energy levels in the ion, can be calculated by the equation:
1
+ Ephoton - hc -- AEelectron - RHet -----
n? (Helitun Ion)
1
8.7149 x 1018J.
n
ni) (Helium Ion)
Calculate the electron energies (Eelectron) of the first 4 energy levels in the helium ion (He*):
n =
[ Select ]
x 10-18 J
n2 =
[ Select]
v x 10-18 J
n3 =
[ Select]
v x 1018 J
n4 =
[ Select)…
Chapter 20 Solutions
EBK CHEMICAL PRINCIPLES
Ch. 20 - Prob. 1ECh. 20 - Prob. 2ECh. 20 - Prob. 3ECh. 20 - Prob. 4ECh. 20 - Prob. 5ECh. 20 - Prob. 6ECh. 20 - Prob. 7ECh. 20 - Prob. 8ECh. 20 - Prob. 9ECh. 20 - Prob. 10E
Ch. 20 - Prob. 11ECh. 20 - Prob. 12ECh. 20 - Prob. 13ECh. 20 - Prob. 14ECh. 20 - Prob. 15ECh. 20 - Prob. 16ECh. 20 - Prob. 17ECh. 20 - Prob. 18ECh. 20 - Prob. 19ECh. 20 - Prob. 20ECh. 20 - Prob. 21ECh. 20 - Prob. 22ECh. 20 - Prob. 23ECh. 20 - Prob. 24ECh. 20 - Prob. 25ECh. 20 - Prob. 26ECh. 20 - Prob. 27ECh. 20 - Prob. 28ECh. 20 - Prob. 29ECh. 20 - Prob. 30ECh. 20 - Prob. 31ECh. 20 - Prob. 32ECh. 20 - Prob. 33ECh. 20 - Prob. 34ECh. 20 - Prob. 35ECh. 20 - The earth receives 1.81014kJ/s of solar energy....Ch. 20 - Prob. 37ECh. 20 - Prob. 38ECh. 20 - Prob. 39ECh. 20 - Prob. 40ECh. 20 - Prob. 41ECh. 20 - Prob. 42ECh. 20 - Prob. 43ECh. 20 - Prob. 44ECh. 20 - Prob. 45ECh. 20 - Prob. 46ECh. 20 - Prob. 47ECh. 20 - Prob. 48ECh. 20 - Prob. 49ECh. 20 - Prob. 50ECh. 20 - Prob. 51ECh. 20 - Prob. 52ECh. 20 - Prob. 53ECh. 20 - Prob. 54ECh. 20 - Prob. 55ECh. 20 - Prob. 56ECh. 20 - Prob. 57ECh. 20 - Prob. 59ECh. 20 - Prob. 60ECh. 20 - Prob. 61AECh. 20 - Prob. 62AECh. 20 - Prob. 63AECh. 20 - Prob. 64AECh. 20 - Prob. 65AECh. 20 - Prob. 66AECh. 20 - Prob. 67AECh. 20 - Prob. 68AECh. 20 - Prob. 69AECh. 20 - Prob. 70AECh. 20 - Prob. 71AECh. 20 - Prob. 72AECh. 20 - Prob. 73AECh. 20 - Prob. 74AECh. 20 - Prob. 75AECh. 20 - Prob. 76AECh. 20 - Prob. 77CPCh. 20 - Prob. 78CPCh. 20 - Prob. 79CPCh. 20 - Prob. 80CPCh. 20 - Prob. 81CPCh. 20 - Prob. 82CPCh. 20 - Prob. 84CP
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