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Pressure-Temperature Demo

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This is an excerpt of an old CHEMSTudy video where Dr. Art Campbell measures the pressure of a gas sample at four different temperatures.

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to grade the numbers and symbols are the same  in order to study  show me the substance that remains a gas the temperature  turn the tables we can see the helium boils its minus 2069 degrees centigrade to use it it should not carbon dioxide earlier who plays helium in this last in boiling water when the flask is immersed in boiling water the volume and the number of molecules remain constant but the pressure changes the pressure is 1.24 atmospheres at 100 degrees the bulb is not placed in melting ice record the data from the heart 100 degrees Centigrade we got a point here  our gas was helium Telex record the data from the melding guide the pressure in melting ice is .93 spheres  the container is taken out and put into a dry ice acetone slush whose temperature is -79 degrees C dance again while it's Professor Campbell recordes the data 0 degrees we got a point here checking on my eyes the pressure at minus 79 degrees is found to be .67 atmospheres liquid nitrogen is -196 degrees for dry eyes we got a point 0.67 atmospheres is atmosphere is the helium gas best potato for Night Kitchen  give us a swine here at .27 atmospheres  let's try passing a street Define through the point  please please it was an experimental error do I go through all the point  furthermore where we 3-pt experimenting at the same time put on this line  thought you would like to use eBay to get a value for absolute zero  here are the data

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Pressure-Temperature Demo

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