Imporant Relationships

• RMS speed

  • (u2)1/2 = (3RT/M)1/2 ; R=8.315 J/K-mol; M = molar mass kg/mol

• Graham’s Law of Effusion

  • Rate of eff1/Rate of eff2 = (M2/M2)1/2

• van der Waals Equation

  • (P + a(n/V)2)(V-bn) = nRT

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