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Chapter 19: Work, Heat, and the First Law of Thermodynamics

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Pages: 515 - 547
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics

Book edition 4th
Author(s) Randall D. Knight
Pages 1240 pages
ISBN 9780133942651

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Illustration

95 Questions for Chapter 19: Work, Heat, and the First Law of Thermodynamics

  1. How much work is done on the gas in the process shown in Figure EX19.1?

    Found on Page 543

  2. When a space capsule returns to earth, its surfaces get very hot as it passes through the atmosphere at high speed. Has the space capsule been heated? If so, what was the source of the heat? If not, why is it hot?

    Found on Page 542

  3. The gas cylinder in Figure Q19.10 is well insulated except for the bottom surface, which is in contact with a block

    Found on Page 542

  4. A gas is compressed from 600 cm3 to 200 cm3 at a constant pressure of 400 kPa. At the same time, 100 J of heat energy is transferred out of the gas. What is the change in thermal energy of the gas during this process?

    Found on Page 543

  5. 500 J of work are done on a system in a process that decreases the system’s thermal energy by 200 J. How much heat energy is transferred to or from the system?

    Found on Page 543

  6. The gas cylinder in Figure Q19.11 is well insulated on all sides. The piston can slide without friction. Many small masses on top of the piston are removed one by one until the total mass is reduced by 50%.

    Found on Page 542

  7. How much heat energy must be added to a 6.0-cm-diameter copper sphere to raise its temperature from -50°C to 150°C?

    Found on Page 543

  8. A rapidly spinning paddle wheel raises the temperature of 200 mL of water from 21°C to 25°C. How much

    Found on Page 543

  9. a. 100 J of heat energy are transferred to 20 g of mercury. By how much does the temperature increase?

    Found on Page 543

  10. How much heat is needed to change 20 g of mercury at20°C

    Found on Page 543

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