Lecture 31 - Charles' Law volume is directly proportional...

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Tro, Chemistry: A Molecular Approach 1 Charles’ Law volume is directly proportional to temperature constant P and amount of gas graph of V vs T is straight line as T increases, V also increases Kelvin T = Celsius T + 273 V = constant x T if T measured in Kelvin 2 2 1 1 T V T V =
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Tro, Chemistry: A Molecular Approach 2 Charles’ Law – A Molecular View the pressure of gas inside and outside the balloon are the same at low temperatures, the gas molecules are not moving as fast, so they don’t hit the sides of the balloon as hard – therefore the volume is small and outside the balloon at high temperatures, the gas molecules are moving faster, so they hit the sides of the balloon harder – causing the volume to become larger
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0 0.1 0.2 0.3 0.4 0.5 0.6 -300 -250 -200 -150 -100 -50 0 50 100 150 Temperature, °C Volume, L Volume (L) of 1 g O2 @ 1500 torr Volume (L) of 1 g O2 @ 2500 torr Volume (L) of 0.5 g O2 @ 1500 torr Volume (L) of 0.5 g SO2 @ 1500 torr The data fall on a straight line. If the lines are extrapolated back
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This note was uploaded on 05/20/2008 for the course CHEM 115 taught by Professor Larkin during the Spring '08 term at Bloomsburg.

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Lecture 31 - Charles' Law volume is directly proportional...

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