Lecture 7 Water, Heat, and Climate

Lecture 7 Water, Heat, and Climate - Water, Heat, and...

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Water, Heat, and Climate
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Heat Capacity The amount of heat input required to raise the temperature of a 1 g of a substance by 1oC. 1 Cal g . oC
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Heat Capacity of Liquids Water 1.00 cal/g·oC Alcohol 0.52 Oil 0.38 Mercury 0.03 The amount of heat (calories) required raise the temperature of a given amount of a substance by 1o Celsius.
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Temperatures of large standing bodies of water remain relatively constant. Heat Capacity
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Sun Warms water Low pressure cools Florida Sand Asphalt Vegetation Gulf of Mexico Atlantic Ocean
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Liquid Water Air What is evaporation?
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Liquid Water Air What is condensation? cooling
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Vaporization and Condensation How much heat?
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Quantified by Latent Heat Amount of heat added or removed from water to effect a phase change. Liquid Gas
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Latent Heat of Vaporization Amount of heat added to water to change it from a liquid to a gas. Liquid Gas 580 cal of heat added for each gram of water 580 cal/g (temperature-dependent)
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Water 580 cal/g Ammonia 350 cal/g Alcohol 215 cal/g Acetone 133 cal/g Latent Heats of Vaporization Amount of heat input to the liquid to change it to a gas
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This note was uploaded on 07/31/2011 for the course SOS 2007 taught by Professor Dr.jamesbonczek during the Summer '07 term at University of Florida.

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Lecture 7 Water, Heat, and Climate - Water, Heat, and...

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