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STATES OF MATTER Self Study. CHANGES IN STATE Four states of matter video clip: click hereclick here.

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Presentation on theme: "STATES OF MATTER Self Study. CHANGES IN STATE Four states of matter video clip: click hereclick here."— Presentation transcript:

1 STATES OF MATTER Self Study

2 CHANGES IN STATE Four states of matter video clip: click hereclick here

3

4 PHASE DIAGRAM Book video clip: click hereclick here

5 Phase Diagram MELTING FREEZING CONDENSATION VAPORIZAITON SUBLIMATION TRIPLE POINT

6 WHAT WORD DESCRIBES MOTION OR MOVEMENT ENERGY?

7 KINETIC ENERGY All matter’s particles are in constant motion

8 State of Matter is determined by Particle arrangement Energy of particles Distance b/w particles

9 KINETIC THEORY: SOLIDS Atoms are vibrating on a fixed point in a solid

10 TYPES OF SOLIDS Book video clip: click hereclick here

11 Amorphous Solid Has no organized internal structure Rubber Plastic Glass Asphalt Cotton Candy

12 COMPOUNDS WITH THE HIGHEST MELTING POINTS ARE….

13 Melting Points Strongest ( highest): Ionic Bonding Hydrogen Bonding Dipole-Dipole Lowest ( weakest) Dispersion

14 1. Ionic : strongest bond Bond kept together by…. Crystalline structure

15 Covalent Compounds have three interactions( intermolecular forces) that keep them together….

16 2. Hydrogen Bonding strongest covalent Highest MP & BP of covalent Hydrogen attracted to: N itrogen O xygen F luorine

17 3. Dipole-Dipole [polar]  - end attracted /// to  + end of another

18 4. Dispersion [nonpolar] weakest -a dipole is induced -lowest MP & BP interaction Induced  + Induced  -

19 KINETIC THEORY: LIQUIDS Particles are not bound together in fixed positions, but there is still some attractive forces keeping them close during movement.

20 Fluidity Particles flow, slide over each other

21 Viscosity

22 KINETIC THEORY OF GASES Book clip: clip hereclip here

23 Gas Particles Assumption #1: Have a small volume Far apart from each other Independent : No attractive or repulsive forces

24 Gas Particles Assumption #2: Move: Rapid Independent Random Straight paths Only  direction when rebounding

25 Gas Particles Assumption #3 When particles collide, there collisions are elastic: no loss of energy it is transferred between the particles

26 GAS PRESSURE Force exerted when gas particles collide: click here click here

27 Pressure Units SI unit : Pascal (Pa) ▫ Sea level: 101.3 kPa Millimeters of Mercury: mm Hg ▫ blood pressure Atmospheres: atm ▫ Atmospheric pressure Torr Pounds per Square Inch: PSI ▫ Tire pressure, scuba diving Bar ▫ Atmospheric pressure

28 Conversions of Pressure 1 atm = 760 mmHg = 101.3 kPa 1 torr = 1 mm Hg 1 atm = 14.7 PSI 1 bar = 1 atm

29 VACUUM no gas particles = no collisions = NO PRESSURE

30 ATMOSPHERIC PRESSURE Gas particles in Air colliding in earth’s atmosphere

31 Elevation and Atmospheric Pressure ↑ Elevation = ↓ Atmospheric Pressure b/c less gas particles =less collisions =  P Sea Level more gas particles = more P

32 More gas particles = More collisions= More pressure

33 EVAPORATION VS CONDENSATION Eureka video clip: click hereclick here

34 EVAPORATION Video Clip: Click hereClick here

35 EQUILIBRIUM Book clip: click hereclick here

36 Evaporation/ Condensation Equilibrium

37 Evaporation/ Condensation Dynamic Equilibrium

38

39 Boiling Liquid has enough HEAT/ENERGY to overcome the External Pressure Vapor Pressure = External Pressure

40 BOILING Video clip: click hereclick here

41 to make something boil added Energy/Heat is addedOr EXTERNAL changed the EXTERNAL pressure is changed

42 Affect of  Temp on Contained Liquid  KE of particles  particle collisions  VP This why a tea kettle whistles

43

44 Elevation and BP

45 Pressure Cooker High Externa l Pressure Creates a High Externa l Pressure   a bubble of vapor can’t form unless  KE=  T   BP is  = hotter liquid= shorter cooking time

46 TEMPERATURE Video clip: click hereclick here

47 MEASURING TEMPERATURE Eureka video clip: click hereclick here

48 TEMPERATURE Movement of particles

49 ABSOLUTE ZERO (0 K) No movement of particles

50 ABSOLUTE ZERO (0 K) Video Clip: Click hereClick here

51 KINETIC ENERGY  TEMPERATURE  Kinetic Energy ↑ the Temp ↑

52 REMEMBER: K =273 +  C  F = (9/5  C) + 32

53 EXPLORING HEAT Video clip: click hereclick here

54 APPLICATION

55 Distillation A homogenous mixture of liquids, a solution, can be separated using the knowledge that: every substance has a unique boiling point all gasses can condense

56 Distillation

57 PLASMA IN A BOTTLE Video Clip: click hereclick here

58 WEATHER Video clip: Click hereClick here

59 SCUBA Video Clip: click hereclick here

60 NITROGEN NARCOSIS Video Clip: click hereclick here


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