Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Chapter 13.2, Problem 2cT
Two students are discussing process 1:
| Student 1: | The volume of the gas decreases, but the pressure increase. Therefore, by the ideal |
| Student 2: | “But I know the temperature goes up. The volume is less, and therefore the particles collide more often with one another.” |
Neither student is correct. Find the flaws in the reasoning of each student. Explain.
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Using the combined gas law, calculate the following. Also, what other law could you have used to solve this problem? Use details to support your answer.Some teenagers think that their parents are “full of hot air.” Your mom inhales 4 liters of air with a temperature of 20 degrees Celsius. Since you think she is full of hot air, this temperature must increase while the air is in her lungs. If this air heats up to 37 degrees Celsius, what is the new volume of the gas? (Note that 37 degrees Celsius is 98.6 degrees Fahrenheit, which is normal body temperature.) Remember to pay close attention to the units of temperature before beginning your calculations. Show all work
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Part A
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Express your answer numerically in meters.
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PROBLEM SOLVING. Choose 4 numbers only. Write the given data, the unknown, the formula and the complete solution.
1. A quantity of gas exerts a pressure of 2.4 atm when its volume is 4.0L at 40⁰C. Calculate the pressure exerted by the same gas if the temperature is raised to 50⁰C while the volume is reduced to 1.5L.
2. A steel bridge is built in several segments, each 20m long. One end of each segment is fixed and cannot expand while the other end is free. The gap between the segments is 4.0 cm at 18⁰C. What is the maximum temperature that the bridge can manage before buckling? The coefficient of linear expansion of steel (α) = 12 x 10-6 /⁰C.
3. Find the rate of heat transfer through a 2.0-m long steel rod if one end of which is placed in an 800K fire. The cross-sectional area of the rod is 1.5 cm2 and the cool end is at 315K. The thermal conductivity of the steel rod is 16.5 J/s-m-K.
4. A 2-kg copper bar is cooled to 60⁰C. If the copper gave off 50 kJ of energy, what was the initial…
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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