1 / 16

Triple Point Plot

melting freezing. vaporization condensation. 0.6. sublimation deposition. 2.6. Triple Point Plot. liquid. solid. Pressure (atm). gas. Temperature ( o C). LeMay Jr, Beall, Robblee, Brower, Chemistry Connections to Our Changing World , 1996, page 488. Triple Point. 22,058.

nola-duffy
Télécharger la présentation

Triple Point Plot

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. melting freezing vaporization condensation 0.6 sublimation deposition 2.6 Triple Point Plot liquid solid Pressure (atm) gas Temperature (oC) LeMay Jr, Beall, Robblee, Brower, Chemistry Connections to Our Changing World , 1996, page 488

  2. Triple Point 22,058 Critical point Critical pressure Normal melting point Normal boiling point 101.3 Pressure (KPa) Solid Vapor Liquid 0.61 Triple point 100 0.016 373.99 0 Critical temperature Temperature (oC)

  3. Objectives - Matter • Explain why mass is used as a measure of the quantity of matter. • Describe the characteristics of elements, compounds, and mixtures. • Solve density problems by applying an understanding of the concepts of density. • Distinguish between physical and chemical properties and physical and chemical changes. • Demonstrate an understanding of the law of conservation of mass by applying it to a chemical reaction.

  4. Objectives - Energy • Identify various forms of energy. • Describe changes in energy that take place during a chemical reaction. • Distinguish between heat and temperature. • Solve calorimetry problems. • Describe the interactions that occur between electrostatic charges.

  5. Law of Conservation of Energy Eafter = Ebefore 2 H2 + O22 H2O + energy • Energy Changes +  + WOOF!

  6. heat, light, sound ENERGY KEstopper PEproducts PEreactants C2H2 + O2 CO2 + H2O Law of Conservation of Energy Eafter = Ebefore 2 H2 + O22 H2O + energy +  + WOOF! • Energy Changes

  7. heat, light, sound ENERGY KEstopper PEproducts PEreactants C2H2 + O2 C2H2 + O2 Law of Conservation of Energy Eafter = Ebefore 2C2H2 + 5O2 4 CO2 + 2H2O + energy • Energy Changes

  8. Gas - KE  Boiling - PE  Liquid - KE  Melting - PE  Solid - KE  Heating Curves 140 120 100 80 60 40 Temperature (oC) 20 0 -20 -40 -60 -80 -100 Time

  9. Heating Curves • Temperature Change • change in KE (molecular motion) • depends on heat capacity • Heat Capacity • energy required to raise the temp of 1 gram of a substance by 1°C • “Volcano” clip - water has a very high heat capacity Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem

  10. Heating Curves • Phase Change • change in PE (molecular arrangement) • temp remains constant • Heat of Fusion (Hfus) • energy required to melt 1 gram of a substance at its m.p. Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem

  11. Heating Curves • Heat of Vaporization (Hvap) • energy required to boil 1 gram of a substance at its b.p. • usually larger than Hfus…why? • EX: sweating, steam burns, the drinking bird Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem

  12. Phase Diagrams • Show the phases of a substance at different temps and pressures. Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem

  13. Resources - Matter and Energy Objectives - matter and energy Objectives - measurement Objectives - phases of matter Worksheet - vocabulary Activity - chromatography Worksheet - percentage composition Outline - causes of change - calorimetry Worksheet - properties Worksheet - calorimetry problems 1 Worksheet - density problems Worksheet - calorimetry problems 2 Activity - density blocks Worksheet - heat energy problems Lab - golf ball lab Worksheet - conversion factors Worksheet - classifying matter Worksheet - atoms, mass, and the mole Article - buckeyball & questions (video) activity - mole pattern Article - buried in ice Outline(general)

  14. Resources - Matter and Energy Objectives - matter and energy Objectives - measurement Objectives - phases of matter Worksheet - vocabulary Activity - chromatography Worksheet - percentage composition Outline - causes of change - calorimetry Worksheet - properties Worksheet - calorimetry problems 1 Worksheet - density problems Worksheet - calorimetry problems 2 Activity - density blocks Worksheet - heat energy problems Lab - golf ball lab Worksheet - conversion factors Worksheet - classifying matter Worksheet - atoms, mass, and the mole Article - buckeyball & questions (video) activity - mole pattern Article - buried in ice Outline(general)

More Related