College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Chapter 12.3, Problem 12.2QQ
Identify the paths A, B, C, and D in Figure 12.11 as isobaric, isothermal, isovolumetric, or adiabatic. For path B, Q = 0.
Figure 12.11 (Quick Quiz 12.2) Identify the nature of paths A, B, C, and D
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For a monatomic ideal gas in thermal equilibrium near room temperature,
a.
U = 3/2 NkT.
b.
U = 5/2 NkT.
c.
degrees of freedom include translational and rotational motions.
d.
degrees of freedom include translational, rotational, and vibrational motions.
e.
U = 5/2 pV.
f.
U = 3/2 pV.
Explain work please.
10. Two moles of an ideal monatomic gas initially at 350 K is expanded from an initialpressure of 10 atm to a final pressure of 1 atm. Calculate ΔU, q, w, ΔH, and the finaltemperature T2 for this expansion carried out according to each of the following paths.The molar heat capacity at constant volume for a monatomic gas is C¯V,m = (3/2)R.(a) An isothermal, reversible expansion.(b) An expansion against a constant external pressure of 1 atm in a thermally isolated(adiabatic) system.(c) An expansion against zero external pressure (i.e. against a vacuum) in an adiabaticsystem.
A rigid tank of volume V = 0.02 m3 contains carbon monoxide at a temperature of T0 = 25° C and a pressure of P0 = 9.00 × 105 Pa. This molecule should be treated as a diatomic ideal gas with active vibrational modes.
a)The temperature of the gas increases by 10° C. Calculate the pressure of the gas in pascal at this increased temperature.
b)Calculate the change to the internal energy of the gas in joules.
c)Calculate the change in the entropy of the gas in joules per kelvin.
Chapter 12 Solutions
College Physics
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