Boyles law molecular view p ext increases t and

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Real World Example: Lungs
5-21The process of breathing applies the gas laws.
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Charles’s Law - Mathematics
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5-26Avogadro’s Law - MathematicsAt constant pressure and temperature, the volume occupied by a gas is directlyproportional to the amount of gas.V nVn= constantAt fixed P and T, Vdecreases as ndecreasesVincreases as nincreases
5-27Avogadro’s law – molecular viewFor a given amount, n1, of gas, Pgas = Patm.When gas is added to reach n2the collision frequency of the particles increases, so Pgas> Patm.As a result, Vincreases until Pgas= Patmagain.Avogadro’s Law: at fixed temperature and pressure, equal volumes of anyideal gas contain equal numbers of particles (or moles).Real World Example: inflating inner tube
5-28The individual gas laws as special cases of the ideal gas law.
Sample Problem 1Solving for an Unknown Variable (Fixed Conditions)PROBLEM:A steel tank has a volume of 438 L and is filled with 0.885 kg of O2. Calculate the pressure of O2at 21oC.=g
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