Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Textbook Question
Chapter 13.2, Problem 3aT
Imagine that the cylinder from section II is no longer thermally insulated, and the piston is locked in place. The gas is initially at room temperature.
The cylinder is then placed into boiling water and reaches thermal equilibrium with the water. We refer to this process as process 2.
1. In process 2, do the following quantities increase, decrease, or remain the same? Explain.
• the temperature of the gas
• the internal energy of the gas
• the pressure of the gas
• the volume of the gas
2. Sketch process 2 on the PV diagram at right.
3. Is there any work done on the gas in process 2? Explain. Is your answer consistent with your PV diagram?
The energy transfer that takes place in this process is called heat transfer. In this process, if the heat transferred to the gas (Q) is greater than zero, the internal energy of the gas will increase.
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Two moles of an ideal gas undergo a reversible
isothermal expansion from 2.32×10-2 m³ to
4.59x10-2 mở at a temperature of 24.4 °C.
Part A
What is the change in entropy AS of the gas?
Express your answer numerically in joules per kelvin.
• View Available Hint(s)
?
AS =
J/K
Submit
Problem 4:
An ideal diatomic gas in a cylinder near room temperature undergoes the cyclic process
shown. The four steps in the process are labeled A, B, C, and D.
1 (b)
P2
V2 Volume
Vị
For each of the steps, A, B, C, D, determine whether each of the following is
positive, negative, or zero:
The work done on the gas.
The change in energy content of the gas.
The heat added to the gas.
Express answers in terms of P1, P2, V1, and V2, then determine the sign.
a) Make the table below showing, for each of the four steps, the sign (+, -, or 0) of
W, Q and AU.
AU
B
D
b) Compute the net heat added, the net work done, and the net change in internal
energy for one complete cycle.
AT =
K
Ideal-gas processes are often shown on a pV diagram
that graphs pressure versus volume. (Figure 1) is the
pV diagram for 2.0 mol of a monatomic gas that
undergo a process taking them from initial state i to
final state f.
Submit
Request Answer
Part B
Figure
1 of 1
What is the change in entropy?
p (kPa)
Express your answer in joules per kelvin.
200-
AS =
J/K
100-
Submit
Request Answer
0-
0.
V (L)
50
100
150
Chapter 13 Solutions
Tutorials in Introductory Physics
Ch. 13.1 - Prob. 1aTCh. 13.1 - In the space provided, draw an arrow to indicate...Ch. 13.1 - Prob. 1cTCh. 13.1 - Prob. 1dTCh. 13.1 - Prob. 1eTCh. 13.1 - Prob. 2aTCh. 13.1 - Prob. 2bTCh. 13.1 - Consider the following student dialogue. Student...Ch. 13.1 - Sketch the process described in section II on the...Ch. 13.1 - Prob. 3bT
Ch. 13.1 - Prob. 4aTCh. 13.1 - A student looks up the molar masses and finds the...Ch. 13.1 - Prob. 4cTCh. 13.2 - Recall the definition of work done on an object by...Ch. 13.2 - Prob. 1bTCh. 13.2 - Prob. 1cTCh. 13.2 - Prob. 2aTCh. 13.2 - Does the internal energy of a gas in an insulated...Ch. 13.2 - Two students are discussing process 1: Student 1:...Ch. 13.2 - Imagine that the cylinder from section II is no...Ch. 13.2 - In process 2, is the heat transfer to the gas...Ch. 13.2 - Prob. 3cTCh. 13.2 - Prob. 4aTCh. 13.2 - In process 1 (section II) you did not need to...Ch. 13.2 - In process 2 (section III) you did not need to...Ch. 13.2 - Prob. 4dTCh. 13.2 - How does the compression in process 3 differ from...Ch. 13.2 - A student is considering process 3: “The...
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