Fundamentals of Physics Extended
10th Edition
ISBN: 9781118230725
Author: David Halliday, Robert Resnick, Jearl Walker
Publisher: Wiley, John & Sons, Incorporated
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Chapter 20, Problem 62P
Suppose 2.00 mol of a diatomic gas is taken reversibly around the cycle shown in the T-S diagram of Fig. 20-35. where S1 = 6.00 J/K and S2 = 8.00 J/K. The molecules do not rotate or oscillate. What is the energy transferred as heat Q for (a) path 1 → 2, (b) path 2 → 3, and (c) the full cycle? (d) What is the work W for the isothermal process? The volume V1 in state 1 is 0.200 m3. What is the volume in (e) state 2 and (f) state 3?
What is the change ΔEint for (g) path 1 → 2, (h) path 2 → 3, and (i) the full cycle? (Hint: (h) can be done with one or two lines of calculation using Module 19-7 or with a page of calculation using Module 19-9.) (j) What is the work W for the adiabatic process?
Figure 20-35 Problem 62.
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Suppose 6.70 mol of a diatomic gas is taken reversibly around the cycle shown in the T-S diagram of the figure, where S1 = 6.00 J/K and S2 = 8.00 J/K. The molecules do not rotate or oscillate. What is the energy transferred as heat Q for
(a) path 1 to 2,
(b) path 2 to 3, and
(c) the full cycle?
(d) What is the work W for the isothermal process? The volume V1 in state 1 is 0.420 m3. What is the volume in
(e) state 2 and
(f) state 3?What is the change ΔEint for
(g) path 1 to 2,
(h) path 2 to 3, and
(i) the full cycle?
(j) What is the work W for the adiabatic process?
50 O A lab sample of gas is taken
through cycle abca shown in the p-V
diagram of Fig. 18-43. The net work
done is +1.2 J. Along path ab, the
change in the internal energy is +3.0 J
and the magnitude of the work done
is 5.0 J. Along path ca, the energy
transferred to the gas as heat is +2.5
J. How much energy is transferred as
heat along (a) path ab and (b) path bc? Figure 18-43 Problem 50.
A room contains 2500 moles of air. If air is treated as an ideal gas with k = 1.4 compute the change in internal energy when it is isobarically cooled from 23.9°C to 11.6°C.
Chapter 20 Solutions
Fundamentals of Physics Extended
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