Lacey_Che131_S2012_Lect-17s

# Lacey_Che131_S2012_Lect-17s - Parameters affecting gasses...

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Lec-17: Ideal gas Law; Gas Reaction; Gas Density Roy A. Lacey, Stony Brook University; Che 131, Spring 2012 1 Parameters affecting gasses ` Pressure (P) olume (V) ` Volume (V) ` Temperature (T) ` Number of Moles (n) V . PV const T = For fixed n Roy A. Lacey, Stony Brook University; Che 131, Spring 2012 2 Boyles Law . PV const T = Volume as Pressure . ` Boyle’s Law: P 1/ V ( T and n fixed) or, × = Constant or, 1 1 = 2 2 Roy A. Lacey, Stony Brook University; Che 131, Spring 2012 3 Charles Law . PV const = T ` Charles’s Law: ( , constant) or, 1 = 2 1 2 ` Volume of a gas extrapolates to zero t absolute zero at absolute zero (0 Kelvin or 273 C). Roy A. Lacey, Stony Brook University; Che 131, Spring 2012 4

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Avagadros Law PV R nT = olume is directly proportional to the number of ` Volume is directly proportional to the number of moles of gas, V n ( T , P constant) . constant = V n 2 1 V V r 2 1 , n n or = Roy A. Lacey, Stony Brook University; Che 131, Spring 2012 5 Amonton’s Law PV nR = T ` ( , constant) ` / = constant ` 1 = 2 1 2 Roy A. Lacey, Stony Brook University; Che 131, Spring 2012 6 Ideal equation of state .
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Lacey_Che131_S2012_Lect-17s - Parameters affecting gasses...

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