This clip is part of the sequence Reaction rate temperature

Credit: RHYS LEWIS, AHS, DECD, UNISA/JON BAUGH/SCIENCE PHOTO LIBRARY

Caption: Graph of an experiment used to measure the effect of temperature on the rate of a chemical reaction. The reaction is a colourless transparent mixture of sodium thiosulfate and hydrochloric acid solutions. Over time, the acid attacks the thiosulfate, forming solid sulfur, which precipitates from solution and gradually makes it more opaque. In this experiment, the reaction was performed at a range of temperatures, and the time taken for the solution to turn opaque was recorded. The y axis shows this time, and the x axis shows the temperature of the reaction. Reactions proceed more quickly at higher temperatures because the reacting ions move more quickly and collide more often, and more of them have the energy required to break chemical bonds.

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Keywords: chemical, chemistry, data, demonstration, education, educational, effect, effecting, experiment, graph, graphs, heat, high, learning, line, low, measuring, opacity, opaque, plot, plotting, point, points, precipitation, rate, rates, reaction, relationship, school, sodium, speed, sulfur, sulphur, table, temperature, temperatures, thiosulfate, time, times, timing

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Measuring effect of temperature on rate

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Duration: 00:00:15.01

Frame size: 1920x1080

Frame rate: 24

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Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 69.8M

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Capture format: QuickTime Animation

Codec: Animation

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