1. Chapter 6
Behavior of Gases

2. When substances are in the Gas Phase, there is a unique result.
All substances while in the gas phase behave the same. We can look at a few of these. In particular, gases follow certain LAWS, called the Gas Laws. Two of these are:
Boyle’s Law - named after Robert Boyle (the same person who gave us the modern definition of an element)
Charles’ Law

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Boyle’s law: At constant temperature, the volume of a gas is inversely proportional to its pressure.
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Charles’s law: At constant pressure, the volume of a gas is directly proportional to its absolute temperature.
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5. Absolute Temperature is designated kelvins or K.
Mathematically: K = °C + 273

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Charles’s Law
Balloon
At liquid nitrogen temp: -196°C or 77 K
Same balloon at Room Temp
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