Spring2006Final

Spring2006Final - FINAL TEST MSE 110 Spring 2006...

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FINAL TEST MSE 110 Spring 2006 Instructions: Put your name, the number of your section and all your answers on the answer sheet (last page). No notes, paper or books are allowed except the Sargent-Welsh periodic table. Ask if you need more paper. Be aware that the questions can have different weigh. There are no negative points for wrong answers. Good luck Some Equations that you may need : E = h ν , c = λν , mv h = λ , E k =½mv 2 , 2 2 1 mv + Φ = ν h , S V e Δ = 2 2 1 mv = 2 2 1 1 6 . 13 i f f i n n E E , Z n a r o n 2 = , 2 2 6 . 13 n Z E n = , 2 n L = , 2 π r=n λ , r ze E Coul 0 2 4 πε = , n rep r C E = , μ σ ne = , μ =L× Δδ ⎛ − = kT E N n g c 2 exp , σ =n h e μ h + n e e μ e , 2 2 R a = , R a 3 4 = , λ = 2d sin θ , 2 2 2 ) ( l k h a d hkl + + = ,…., ] [ ] [Re ln RT E E o Ox d nF Δ = Δ , equ equ Ox d K ] [ ] [Re = , + = 2 1 1 1 2 1 1 m m k π υ , 2 1 1 + = = n n I I R o R , v c n = = ε o S I a I 4 = , l α = e o I I , 2 1 2 1 sin sin θθ n n = Some constants and conversions : Planck’s constant: h = 6.626 × 10 -34 J sec Boltzmann’s constant: k = 1.38 × 10 -23 J/K molecule Avogadro’s number: N A = 6.02 × 10 23 molecules/mole Permittivity of space: ε 0 = 8.86 × 10 -12 C 2 /J m Gas constant: R = 8.314 K -1 mole -1 ; Electron charge: e = 1.602 × 10 -19 coul Electron mass: m = 9.1 × 10 -31 kg; Proton mass = 1.67 × 10 -27 kg Speed of light: c = 3 × 10 8 m/sec; Bohr’s radius: a 0 = 52.9 pm 0257 . 0 RT = F Faraday constant: F=96500 C N c = 5 × 10 25 m -3 E o (O 2 /OH-) = 0.40 V E o (O 2 /H 2 O) = 1.23 V 1 eV = 1.602 × 10 –19 J 1 J =1 kg·m 2 ·s -2
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PART I Question 1: When an electrochemical cell reaches equilibrium, the concentration of reactant and products are [Ox]=[Red]= 1mol/liter. (3pts) (1) TRUE (2) FALSE Question 2: The lower the velocity of light in a glass, the greater the reflectivity of that glass. (4pts) (1) TRUE (2) FALSE Question 3: Gold would act as a good sacrificial anode to protect Fe. (3pts) (1) TRUE (2) FALSE Question 4: The greater the difference of index between two medium, the greater the critical angle for
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This note was uploaded on 10/05/2009 for the course MSE 110 taught by Professor Lucas during the Spring '08 term at Arizona.

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Spring2006Final - FINAL TEST MSE 110 Spring 2006...

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