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Important Quantities for exam 1-2011

# Important Quantities for exam 1-2011 - BME 210-01 Fall 2011...

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BME 210-01, Fall 2011 Important Quantities to be known by memory for Exam 1 Dimensions expressed as L = Length, M = mass, T = time, Ө = temperature, N = Moles, W = Molecular Weigh, V = voltage, A =Amperes. Q = Charge A = Cross sectional area perpendicular to flux,[ L 2 ] c = Total molar concentration of a material, [ M/(W L 3 ) or N/L 3 ] C A = Concentration of substance A in a multicomponent material, [ M/(W L 3 ) or N/L 3 ] c p = Heat capacity, [ L 2 /(T 2 - ) Ө ] , D AB = Diffusion coefficient (diffusivity) of A in B, [ L 2 /T ] ΔE = Electrical potential difference, [ M/(L 2 -T 3 -Q) ] f= Friction factor, dimensionless. Fick’s Law of Diffusion Fourier’s Law of heat conduction h = Heat transfer coefficient, [ M/(T 3 - Ө )] j i = mass flux of i relative to mass average velocity, [ M/(L 2 T) ] j* i = mass flux of i relative to molar average velocity,[ M/(L 2 T) ] J i * = molar flux of i relative to molar average velocity, [ M/(L 2 TW )] J i * = C i ( v i – v i * ) J i = molar flux of i relative to mass average velocity,[ M/(L 2 TW) ] k = Thermal Conductivity, [ ML/(T 3 ) Ө ] k A = Overall mass transfer coefficient, [ L/T ].

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