Electron Structure Diagrams Heat of Water Two ways to correctly do these With elemental symbol in center With number of protons in center Supplementary Textbook Materials Chapter 19 Pages 424 435 Not with circles around symbol and electrons distributed around circle Dot Diagrams Phases of Matter Only show VALENCE Electrons Don t show shells Gas Liquid and Solid Solid Liquid Gaseous or vapor Plasma Evaporation Kinetic energy of molecules Taken from liquid cools it Gaseous phase or vapor phase Gas Liquid Solid Zumdahl Zumdahl DeCoste World of Chemistry 2002 page 441 http www unit5 org christjs Matter 20and 20Energy Unit 202 20PP files frame htm 1 Water vapor Gas Steam H2O g Steam http www unit5 org christjs Matter 20and 20Energy Unit 202 20PP files frame htm Evaporation or Not http en wikipedia org wiki Water vapor Condensation Opposite of evaporation Kinetic energy of molecules Heats environment http www geology sdsu edu classes geol351 01watercycle watercyclefigs htm Condensation on Glass Liquid Water H2O l Water http www geology sdsu edu classes geol351 01watercycle watercyclefigs htm http www unit5 org christjs Matter 20and 20Energy Unit 202 20PP files frame htm 2 Atmosphere Evaporation Energy goes into air Cools remaining water Condensation Energy goes from air to surface Warms local environment Water Vapor Capacity http www wdtv com weather images Weather Review humidity htm Condensation diagram http weatherstreet com weatherquestions What is condensation htm Atmosphere Warm air has greater capacity for holding water in the vapor phase Saturation at capacity Relative Humidity percent of water contained compared to saturated amount at that temperature Condensation http observe arc nasa gov nasa earth hydrocycle graphics condensation jpg Sea Fog http www anythingmarine co uk anything met htm 3 Boiling http www chem purdue edu gchelp liquids boil2 html Microscopic boiling http www chem purdue edu gchelp liquids boil2 html Pressure canner http hgic clemson edu factsheets HGIC3020 htm Boiling http www deepseaimages com dsilibrary showphoto php photo 2912 password sort 1 size medium cat 853 page 1 Pressure Cooker http www goodmans net get item ma 6qt maitres 806212 6 qt cooker htm Boiling Temp vs Pressure http www chem purdue edu gchelp liquids boil2 html 4 Energy of Water Phase Change Boiling at less than 100 o C Calorie energy to change 1 gram of water 1 K or 1 oC Also need energy to change to different state of matter Energy of vaporization condensation Reduce Pressure 540 calories per gram of water Energy of melting freezing 80 calories per gram http www micrecol de air2 html Heating Curve for Water Solid Ice Temperature oC vaporization E D 100 gas condensation melting C liquid B 0 A solid freezing H2O s Ice Heat added LeMay Jr Beall Robblee Brower Chemistry Connections to Our Changing World 1996 page 487 http www unit5 org christjs Matter 20and 20Energy Unit 202 20PP files frame htm http www unit5 org christjs Matter 20and 20Energy Unit 202 20PP files frame htm Molecular Structure of Ice Solid Liquid Gas Hydrogen bonding a Particles in solid b Particles in liquid c Particles in gas Zumdahl Zumdahl DeCoste World of Chemistry 2002 page 455 http www unit5 org christjs Matter 20and 20Energy Unit 202 20PP files frame htm http www unit5 org christjs Matter 20and 20Energy Unit 202 20PP files frame htm 5
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