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Kinetic Molecular Theory Images taken from www.bcpl.net/~kdrews/kmt/kmt.

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Presentation on theme: "Kinetic Molecular Theory Images taken from www.bcpl.net/~kdrews/kmt/kmt."— Presentation transcript:

1 Kinetic Molecular Theory Images taken from www.bcpl.net/~kdrews/kmt/kmt

2 Kinetic Molecular Theory (KMT) Explains the behavior of an IDEAL GAS so that we can describe the nature of real gases.

3 #1. Gas particles are so small they take up no size and space Volume = 0

4 #2 Gas particles travel randomly in straight-line motion following laws of mechanics

5 #3 Collisions between particles are elastic (conserve energy)

6 #4 The gas particles do not react with each other or the side of the container

7 #5 The average kinetic energy of the particles is directly proportional to the temperature in Kelvins

8 Kelvin scale for temperature extrapolates temperature to a point where molecules cease to move

9 Kelvin scale is also called the absolute temperature scale K = o C + 273

10 Pressure = Force Area Pounds per square inch (psi) Millimeters of mercury (mm Hg) Atmospheres (atm) Kilo-pascal (kPa)

11 Atmosphere is the pressure in our normal air at sea level

12 Pounds per square inch (psi) 14.7 psi = 1.0 atm

13 Millimeters of mercury (mm Hg) 760 mm Hg = 1.0 atm

14 Kilopascal measures Newtons / m 2. 101.325 kPa = 1.0 atm

15 STP is standard temperature and pressure Always 273 Kelvin and 1.0 atm

16 Avagadro’s Principle = volume is directly proportional to # molecules

17


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