UH PHYS 1302 - Ch16 (10 pages)

Previewing pages 1, 2, 3 of 10 page document View the full content.
View Full Document

Ch16



Previewing pages 1, 2, 3 of actual document.

View the full content.
View Full Document
View Full Document

Ch16

197 views

ch 16 study guide


Pages:
10
School:
University of Houston
Course:
Phys 1302 - Introductory to Physics II

Unformatted text preview:

Chapter 16 Temperature and Heat 1 Temperature and the Zeroth Law of Thermodynamics Heat is the energy that is transferred between objects because of a temperature difference If heat can flow between two objects they are in what is called thermal contact Thermal contact is not the same as physical contact heat can be transferred without two objects physically touching When objects are in thermal contact the transfer of heat stops when the objects are in thermal equilibrium When two objects are in thermal equilibrium they have the same temperature Zeroth Law of Thermodynamics If two objects are in thermal equilibrium with a third system they are in thermal equilibrium with each other 2 Temperature Scales Celsius water freezes at 0 C and boils at 100 C Fahrenheit water freezes at 32 F and boils at 212 F Conversion between Fahrenheit and Celsius 9 TF TC 32 5 5 TC TF 32 9 L Whitehead 1 1 2 Phys 1302 Convert 40 C to Fahrenheit 9 TF 40 32 104 F 5 Experiments show that there is a lowest temperature below which it is not possible to cool an object This lowest temperature is called absolute zero The pressure of a gas has a depends on its temperature This relationship can be mapped out in the lab for different gases If you extrapolate the curve back to the point where the pressure of the gas would be zero you find that zero pressure happens at the same temperature for any gas That temperature is defined as absolute zero Kelvin The Kevin scale is set so that 0 K is exactly absolute zero The size of a Kelvin degree is the same as the size of a Celsius degree i e a change of 1 degree Kelvin is equivalent to a change of 1 degree Celsius The conversion between Celsis and Kelvin T TC 273 15 3 The degree symbol is not used with the Kelvin scale What is absolute zero in degrees Fahrenheit 0 TC 273 15 TC 273 15 C 9 TF 273 15 32 5 TF 459 67 F 3 Thermal Expansion Most materials expand when heated L Whitehead 2 Phys 1302 A rod of length L0 will expand by an amount proportional to the



View Full Document

Access the best Study Guides, Lecture Notes and Practice Exams

Loading Unlocking...
Login

Join to view Ch16 and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view Ch16 and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?