Gases and Equilibria: chem core 1a 0.0 / 5 ? ChemistryGases and EqulibriaUniversityNone Created by: ChloeD1995Created on: 27-12-13 13:43 pV= =nRT 1 of 23 (p1V1)/T1 = = (p2V2)/T2 2 of 23 Dalton's Law ptotal = p1 + p2 3 of 23 Mole fraction (no units) Xa=na/ntotal 4 of 23 pa= Xa x ptotal 5 of 23 pV= 1/3 nMc^2 = nRT 6 of 23 rate of effusion= √(1/M). (where M is molar mass) 7 of 23 van den Waals equation of state {p+(an^2)/V^2} (V-nb) 8 of 23 R 8.314 JK^-1mol^-1 9 of 23 1N mass x acceleration = kgms^-2 10 of 23 k theta standard equilibrium constant 11 of 23 k delta is defined in terms of activities (no units) 12 of 23 k delta = activity of products^no moles/activity of reagents^no moles 13 of 23 activity of a pure solid 1 14 of 23 activity of a pure liquid 1 15 of 23 activity of a perfect gas p/pdelta ( where pdelta=1 bar=1x10^5Pa) 16 of 23 activity of solution of A (ideal dilute solution) [A]/[A]delta. (where [A]delta =1moldm^-3) 17 of 23 Kp equilibrium constant 18 of 23 kp= Kc(RT)^∆n 19 of 23 z= collision frequency, s^-1 20 of 23 1/z= time of flight, s 21 of 23 lambda= mean free path, m (varies with pressure) 22 of 23 root mean square (RMS) speed= c=lambda x z 23 of 23
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