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formulasheet2 - PHYS4125 Fall 2011 Exam 2 (Schroeder Ch. 2...

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PHYS4125  Fall 2011 Exam 2 (Schroeder Ch. 2 – 3) Formulas and Constants First and Second Law Equipartition Theorem:  U thermal = N f 2 k B T 1 st  Law of Thermodynamics:  U = Q W               Compressive Work:  W =− V o V f P V dV Adiabatic Processes:  PV γ  = constant;  VT f /2  = constant;  γ  = ( f +2) /  f Heat Capacity:  C  =  Q / T  or  C = Q T N , V P = U T N ,V P Enthalpy:  H  =  U  +  PV Heat Conduction:  Q t =− k t A dT dx k t = 1 2 C V V l v Mean Free Path:  l 1 4 r 2 V N ; RMS velocity:  v rms  = (3 k B T / m ) 1/2 Scattering time:  t l v rms Viscosity:  F x A = du x dz Diffusion, Fick's Law:  J x =− D dn dx Binomial Distribution: P N n = N ! n! N n ! p n r N n and   N ,n = N ! n!
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formulasheet2 - PHYS4125 Fall 2011 Exam 2 (Schroeder Ch. 2...

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