BIO 120 Lecture Notes - Lecture 3: Evaporative Cooler, Sodium Hydroxide, Chemical Polarity

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10 Oct 2017
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Polar molecule: four emergent properties of water, cohesion/ adhesion. Water molecules tend to stick together and stick to other things because water is a polar molecule that forms hydrogen molecules which makes it sticky. : hydrogen bond and polar covalent cohesion allows for water movement up large trees via transpiration cohesion the surface of water high surface tension. Water becomes a great microhabitat for living organisms: moderation of temperature. Temperature: the measure of heat intensity due to the average kinetic energy of molecules in a body of matter. (high-fast low-slow) Water has a high specific heat relative to other substances. Specific heat: amount of heat energy required to change one gram of a substance by one degree celsius (specific heat of water: 4. 18 joules, 1 calorie) Heat energy has to be used to break hydrogen bonds as water temperature goes up, more bonds are breaking than forming (ex. As molecules slow down, hydrogen bonds are forming (ex.

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