* Molecules are still close together. * Take the shape of container. Phases of Matter Gas * Molecules relatively far apart. * Molecules have high speed of Kinetic Energy. Latent Heat * Heat associated with a phase change.
* L f = latent heat of fusion * H = m L f = heat needed to melt a substance. * L v = latent heat of vaporization * H = m L v = heat needed to vaporize a substance. Latent Heat Latent heat of fusion used to break apart the crystalline lattice of water. Latent Heat Graph Heat Transfer * Conduction * Convection * Radiation Kinetic Theory & Gas Laws Pressure & Number of Molecules * Pressure is directly proportional to the number of gases molecules present. * p α N Kinetic Theory & Gas Laws Pressure & Temperature * At constant volume pressure is directly proportional to the Kelvin temperature. * p α T Kinetic Theory & Gas Laws Pressure & Temperature Since we Mentioned Steam Engines Thomas the Tank Engine Thomas the Tank Engine, former Brooklyn Eastern District Terminal (BEDT) 0-6-0 #15, draws Strasburg’s largest crowd of the year. Here he is seen returning to Strasburg with eight coaches and caboose on the first day of the week-long "Day Out With Thomas." Note the movable eyes that provide a perfect "pose" for this photo! More Thomas photos at SteamPhotos.com . Kinetic Theory & Gas Laws Pressure & Volume Boyle’s Law Robert Boyle (1627 – 1691)
* At constant temperature pressure is inversely proportional to the volume.
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