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cee11-sp05-final-Kirchstetter-soln

cee11-sp05-final-Kirchstetter-soln - -1 °C-1 Latent heat...

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1 D EPARTMENT OF C IVIL AND E NVIRONMENTAL E NGINEERING U NIVERSITY OF C ALIFORNIA , B ERKELEY E11, M AY 16, 2005 F INAL E XAM Name and Student ID: Solution______________________ Instructions: Answer the questions that follow directly on these pages in the spaces provided. Use the back of the page if you need more room for your answer. If you believe there is insufficient information provided to answer a question completely, state reasonable assumptions and proceed from there. This exam is closed-book/closed-notes. Calculators are allowed. Time: 180 minutes. Question: Score: Out of: 1 _____ 14 2 _____ 6 3 _____ 10 4 _____ 8 5 _____ 7 6 _____ 7 7 _____ 11 BONUS _____ TOTAL _____ 63
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2 Useful Data and Formulas : Atomic masses: H=1, C=12, N=14, O=16, S=32, Cl=35.5 g mol -1 Ideal gas law: PV = nRT Ideal gas constant R = 0.08205 L atm K -1 mol -1 Specific heat of water = 4.2 kJ kg -1 °C -1
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Unformatted text preview: -1 °C-1 Latent heat of vaporization = 2.4 kJ g-1 Latent heat of fusion = 0.33 kJ g-1 Dissociation of hydrochloric acid: HCl ↔ H + + Cl – Equilibrium reactions and constants: H 2 O ↔ H + + OH – K w = 10-14 M 2 H 2 CO 3 ↔ H + + HCO 3 – K 1 = 10-6.35 M HCO 3 – ↔ H + + CO 3 2– K 2 = 10-10.33 M CMFR general equation: dC/dt = S – LC Solution to CMFR general equation: C(t) = C o exp(–Lt) + (S/L)[1-exp(–Lt)] Settling velocity for particles in water: v s = ( ρ-ρ w ) d 2 g/(18 µ ), where ρ w and µ are the density and dynamic viscosity of water µ = 0.01 g cm-1 s-1 g = 9.81 m s-2 Sedimentation basin efficiency, η = v s /v c Radiative forcing of greenhouse gases as function of concentration, F = f (C): Linear region, ∆ F = k 1 ∆ C Square root region, ∆ F = k 2 ∆ C Logarithmic region, ∆ F = k 3 ∆ (lnC)...
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