Velocity Of Chemical Reactions

Velocity Of Chemical Reactions Erpi Classroom Films 13:47:09 Large wooden farmhouse w/ chimney & smoke. Int. w/ log on fireplace. Man taking flash picture of two children building w/ toy blocks in living room. CU three flash bulbs igniting. 13:47:35 Fire burning large building; firemen putting out fire. Fireboat. 13:47:51 Man in chemistry lab showing how slow iron wire reacts in air; then into pure oxygen & burning brightly. Animation of oxygen molecules moving around wire, ratio higher than in air. 13:48:42 Man opening check damper & closes draft diminishing fire as oxygen is cut off. Lab w/ man demonstrating adding chemicals for two reactions & time of reaction measured. Experiment shown in animation of Oxygen & Iron. Chart shows effect of changing volume or concentration. 13:53:19 Woman at oven putting in cake or bread to bake, setting temperature. 13:53:30 Lab coated technician in chemical laboratory. Experiment, animation, graph of reaction drawn. Molecules bouncing off each other & changing composition. The End. Science; Chemistry; Physics; Educational Films; Animated Graphics; Oddities; Gags; Lecture Film; 1938; 1930s Americana;