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18 Cards in this Set
- Front
- Back
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Polar Molecule |
-Water -Opposite ends gave opposite charges Allows water to form a max of 4 hydrogen bonds |
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4 Properties of water that benefit life |
-Cohesive behavior -Ability to moderate temperature -Expansion upon freezing -Versatility as a solvent |
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Cohesion |
Attraction between like molecules |
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Adhesion |
Attraction between unlike molecules |
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Surface Tension |
-Measures how hard it is to break the surface of a liquid -Related to cohesion |
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Moderation of Temperature |
-Water Absorbs heat from warmer air and releases stored heat to cooler air -Water can absorb or release a large amount of heat with only a slight change in its own temperature |
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Kinetic Energy |
Energy of motion |
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Heat |
Measure of the total amount of kinetic energy due to molecular motion |
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Tenperature |
-Measures intensity of heat due to the average kinetic energy of molecules |
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Specific Heat |
Amount of heat absorbed or lost for one gram of that substance to change its temperature by one degree Celsius |
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Evaporation |
Transformation of a substance from a liquid to a gas |
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Heat of Vaporization |
The heat a liquid must absorb for one gram to be converted to gas |
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Evaporative Cooling |
-As a liquid evaporates, its remaining surface cools -Helps stabilize temperatures in organisms and bodies of water |
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Solution |
A liquid that is a homogenous mixture of substances |
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Solvent |
Dissolver |
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Solute |
Dissolved |
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Water is a versatile solvent due to... |
-Polarity -Ability to form hydrogen bonds |
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Aqueous Solution |
Water is the solvent |
