Physics of Everyday Phenomena
9th Edition
ISBN: 9781259894008
Author: W. Thomas Griffith, Juliet Brosing Professor
Publisher: McGraw-Hill Education
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Chapter 18, Problem 8CQ
To determine
Whether an atom of carbon have the same as one atom of oxygen.
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3) Show that y
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E
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(2) ²
-¹/2
is:
Assume that a room at sea level is filled with a gas of nitrogen molecules N2
in thermal equilibrium at -10.0 °C (negative ten degrees Celsius). There are 7 protons and 7
neutrons in the nucleus of a nitrogen atom N. You may take the masses of the proton and the
neutron to be the same, and ignore the mass of the electrons. 1 atm=1.01x105 N/m² ,
h=1.05x10-34 J-s , mp=1.67x10-27 kg, kB = 1.38x10-23 J/K .
a) What is the (particle) number density n according to the ideal gas law?
b) Compare the number density n with the quantum concentration ng at the same
temperature.
c) Is the gas in the classical or quantum regime?
3)
Assume that this room was filled with a gas of oxygen molecules O₂ in thermal
equilibrium at 0 °C. There are 8 protons and 8 neutrons in the nucleus of an oxygen atom O. You may
take the masses of the proton and the neutron to be the same, and ignore the mass of the electrons.
1 atm=1.01x105 N/m², h=1.05x10-34 J-s, mp=1.67x10-27 kg, ka=1.38x10-23 J/K.
a) What would the (particle) number density, n, be according to the ideal gas law?
b) Compare the number density with the quantum concentration, no, at the same
temperature. Is the gas in the classical or quantum regime?
Chapter 18 Solutions
Physics of Everyday Phenomena
Ch. 18 - Prob. 1CQCh. 18 - Prob. 2CQCh. 18 - Prob. 3CQCh. 18 - Prob. 4CQCh. 18 - Prob. 5CQCh. 18 - Prob. 6CQCh. 18 - Prob. 7CQCh. 18 - Prob. 8CQCh. 18 - Prob. 9CQCh. 18 - Prob. 10CQ
Ch. 18 - Prob. 11CQCh. 18 - Prob. 12CQCh. 18 - Prob. 13CQCh. 18 - Prob. 14CQCh. 18 - Prob. 15CQCh. 18 - Prob. 16CQCh. 18 - Prob. 17CQCh. 18 - Prob. 18CQCh. 18 - Prob. 19CQCh. 18 - Prob. 20CQCh. 18 - Prob. 21CQCh. 18 - Prob. 22CQCh. 18 - Prob. 23CQCh. 18 - Prob. 24CQCh. 18 - Prob. 25CQCh. 18 - Prob. 26CQCh. 18 - Prob. 27CQCh. 18 - Prob. 28CQCh. 18 - Prob. 29CQCh. 18 - Prob. 30CQCh. 18 - Prob. 31CQCh. 18 - Prob. 32CQCh. 18 - Prob. 33CQCh. 18 - Prob. 34CQCh. 18 - Prob. 35CQCh. 18 - Prob. 1ECh. 18 - Prob. 2ECh. 18 - If 112 g of silicon (Si) react completely with 64...Ch. 18 - Prob. 4ECh. 18 - Prob. 5ECh. 18 - How many electrons would be required to produce 12...Ch. 18 - Prob. 7ECh. 18 - Prob. 8ECh. 18 - Prob. 9ECh. 18 - Prob. 10ECh. 18 - Prob. 11ECh. 18 - Prob. 12ECh. 18 - An electron beam in a cathode-ray tube passes...Ch. 18 - Prob. 2SPCh. 18 - Prob. 3SPCh. 18 - Prob. 4SP
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