Giancoli 7th Edition textbook cover
Giancoli's Physics: Principles with Applications, 7th Edition
Temperature and Kinetic Theory
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13-1: Atomic Theory
13-2: Temperature and Thermometers
13-4: Thermal Expansion
13-5: Gas Laws; Absolute Temperature
13-6 and 13-7: Ideal Gas Law
13-8: Ideal Gas Law in Terms of Molecules; Avogadro's Number
13-9: Molecular Interpretation of Temperature
13-11: Real Gases; Phase Changes
13-12: Vapor Pressure and Humidity
13-13: Diffusion

Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 3
  1. “Room temperature” is often taken to be 68F68 ^\circ \textrm{F}. What is this on the Celsius scale?
  2. The temperature of the filament in a lightbulb is about 1900C1900 ^\circ \textrm{C}. What is this on the Fahrenheit scale?
20C, 3500F20^\circ\textrm{C, } 3500^\circ\textrm{F}
Giancoli 7th Edition, Chapter 13, Problem 3 solution video poster

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This is Giancoli Answers with Mr. Dychko. The temperature in degrees Celsius is 5/9 times the Fahrenheit temperature after you take away 32. So, 68 degrees Fahrenheit for room temperature minus 32 multiplied by 5/9 is 20 degrees Celsius. And then for the temperature inside a light bulb you take, the Fahrenheit temperature is calculated by going 5, or 9 over 5 times the temperature in Celsius and then add 32 after you do the multiplying. So, we have 9/5 times 1,900 degrees Celsius temperature of the filament plus 32. And that gives about 3,500 degrees Fahrenheit.

By ljn8 on Mon, 11/17/2014 - 10:56 PM

This should be degrees F for part b

By Mr. Dychko on Mon, 11/17/2014 - 11:08 PM

Thanks a lot for noticing that ljn8, I've updated the text.

Mr. Dychko

By shine07 on Tue, 12/8/2015 - 3:26 AM

Can you please include the formulas first rather than just plugging in the numbers?

By shine07 on Tue, 12/8/2015 - 3:33 AM

Never mind. I read the question wrong.

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