{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

HW_5_Solution - b Because the heating element is outside...

Info icon This preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Solution of Homework Assignment 5 1.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
2.
Image of page 2
3. 4. Heat transfer is driven by temperature difference. For the cupped hands, the skater s exhalation is warmer than the hands and thus the heat transfer is TO the hands; warming them. For the soup, the skater s exhalation is cooler than the hands and thus the heat transfer is FROM the soup; cooling it. 5. Identify the energy transfer mechanisms.
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
a. Because the heating element is inside the system, the heating element performs work transfer. Because the oven is well insulated, there is no heat transfer.
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: b. Because the heating element is outside the system, the heating element performs heat transfer. There is no work transfer. c. The current flow through the operating microchip performs electrical work. The cooling fan performs heat transfer. d. The sunshine into the dorm room is an example of radiative heat transfer. The oscillating fan performs work transfer. Note that the oscillating fan is outside the system. e. The stopped, insulated flask is an isolated system and thus there is neither work transfer, nor heat transfer....
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern