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ses100lec7 - SES100 Ch. 11 Temperature Heat Srikanth...

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1 SES100 Ch. 11 Temperature Heat Srikanth Saripalli
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Chapter 16: Temperature and Heat Temperature is a fundamental quantity which characterizes the physical state of a substance. In the microscopic statistical theory, we understand temperature as the average energy per degree of freedom of motion of the substance. Heat is an interaction between two objects, particularly the flow of energy from one object to another. When two objects are placed in thermal contact (so that heat is able to flow from one to the other), heat will flow until the temperatures of the two objects are the same. Then the two objects are in thermal equilibrium.
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Temperature Scales Celsius – water freezes at 0 ° C and boils at 100 ° C Fahrenheit – water freezes at 32 ° F and boils at 212 ° F Kelvin - water freezes at 273.15 K and boils at 373.15 K. But how do we determine the equal divisions between these calibration points? Absolute Zero – the lowest possible temperature: 0 K = –273.15 ° C T K = T C + 273.15
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Thermal Expansion Most substances expand when heated. They expand in all dimensions
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This note was uploaded on 03/06/2011 for the course SES 100 taught by Professor Saripalli during the Spring '09 term at ASU.

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ses100lec7 - SES100 Ch. 11 Temperature Heat Srikanth...

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