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final, chem 115, WVU fall '25
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Dalton’s Law of Partial Pressures
in an ideal gas mixture, each gas exerts a pressure as if it’s alone in the mixture
Dalton’s Law
decreasing volume increases pressure
Avogadro’s Law
volume of gas is directly proportional to the number of moles
Charles’s Law
volume and temperature are proportional at constant pressure (doubling the temp of a gas doubles its volume)
Amonton’s Law
increasing temperature will increase pressure if volume is kept constant

Graham’s Law of Effusion
rate of effusion of a gas is inversely proportional to the square root of its molar mass