1 / 8

Solving Carnot Refrigerator and Entropy Problems in Thermodynamics

This document covers various thermodynamics problems prepared by Vince Zaccone for UCSB's Campus Learning Assistance Services. It includes detailed examples of a Carnot refrigerator operating between two heat reservoirs, calculating heat energy delivered, power input, and the coefficient of performance. Additionally, it examines the change in entropy during the melting of ice and the isothermal compression of gas. These problems aim to enhance understanding of thermodynamic principles and entropy changes in different systems.

sailor
Download Presentation

Solving Carnot Refrigerator and Entropy Problems in Thermodynamics

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Physics 2 Chapter 20 problems Prepared by Vince Zaccone For Campus Learning Assistance Services at UCSB

  2. Prepared by Vince Zaccone For Campus Learning Assistance Services at UCSB

  3. 20.17 A Carnot refrigerator is operated between two heat reservoirs at temperatures of 320K and 270K. (a) If in each cycle the refrigerator receives 415J of heat energy from the reservoir at 270K, how many joules of heat energy does it deliver to the reservoir at 320K? (b) If the refrigerator completes 165 cycles each minute, what power input is required to operate it? (c) What is the coefficient of performance of the refrigerator? Prepared by Vince Zaccone For Campus Learning Assistance Services at UCSB

  4. 20.25 A sophomore with nothing better to do adds heat to 0.35 kg of ice at 0°C until it is all melted. (a) What is the change in entropy of the water? (b) The source of heat is a very massive body at temperature 25°C. What is the change in entropy of this body? (c) What is the total change in entropy of the system? Prepared by Vince Zaccone For Campus Learning Assistance Services at UCSB

  5. 20.29 Three moles of an ideal gas undergo a reversible isothermal compression at 20°C. During this compression, 1850 J of work is done on the gas. What is the change in entropy of the gas? Prepared by Vince Zaccone For Campus Learning Assistance Services at UCSB

  6. SOLUTION ON THE NEXT PAGE Prepared by Vince Zaccone For Campus Learning Assistance Services at UCSB

  7. Prepared by Vince Zaccone For Campus Learning Assistance Services at UCSB

  8. Prepared by Vince Zaccone For Campus Learning Assistance Services at UCSB

More Related