chapter 5 ppt - Chapter 5 Global Temperatures Global...

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Chapter 5 Global Temperatures
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Global Temperatures: Topics Temperature Concepts and Measurement Principal Temperature Controls Earth’s Temperature Patterns Air Temperature and the Human Body
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Temperature Concepts Heat and temperature are not the same Heat—energy flow from one system to another due to temperature difference (Hot Cold) Temperature—measure of the average kinetic energy (motion) of individual molecules in matter We feel the effect of temperature as the sensible heat transfer from warmer objects to colder objects; T are caused by absorption/emission of heat energy
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Temperature Scales Daniel Fahrenheit (1686-1736, Germany) 32°F M.P. and 212°F B.P. (180 divisions; coldest in lab: 0°F) Anders Celsius (1701-1744, Sweden) 0°C M.P. and 100°C B.P. (decimal system) Lord Kelvin (1824-1907, England) Absolute zero = 0°K, 273°K M.P. and 373°K B.P. Measuring Temperature—fluid like mercury and
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chapter 5 ppt - Chapter 5 Global Temperatures Global...

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