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110年 - 110 國立清華大學碩士班考試入學試題_分析與環境科學研究所:環境化學#104982

科目：研究所、轉學考(插大)◆環境化學 | 年份：110年 | 選擇題數：0 | 申論題數：14

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所屬科目：研究所、轉學考(插大)◆環境化學

選擇題 (0)

申論題 (14)

(A) Endogenic and exogenic cycles.
(B) Zeta potential.
(C) Ionic strength and adsorption.
(D) Terpene and photochemical smog.
(E) Carbon footprint.
(F) Chelation.

2. What is the settling velocity of a particle with a Stokes diameter of 7 Jum and a density of 1 g/cm3 in air at 1.00 atm and 25℃? (The viscosity of air at 25℃ is 186 micropoise. The density of air under 1.00 atm and 0 ℃ is 1.29 g/L.) (20%)

(A) Calculate the concentration of61c025af2d3b0.jpgand OH. (5%)
(B) Assume no input of atmospheric CO2. Through the photosynthetic activity of algae, the pH of the water was changed to 10.0; please calculate all the preceding concentrations and the weight of biomass, {CH2O}, produced. (10%)
(A)The possible formation mechanisms of humic substances. (7%)
(B) Usually humic substances can be divided into humic acid, fulvic acid and humin according to the solubility in acid and basc. Please compare the general properties of bumic acid and fulvic acid (e.g. molecular weights, functional groups and elemental composition). (8%)
(C) Briefly describe the principles of electron shuttling effect of humic substances. (5%)

(A) Calculate the values of 61c02652cda80.jpg, pE, and pH at the point in following figure where61c0266f8e413.jpg is at a concentration of 1 x 61c026929ee95.jpg M, and Fe(OH)2 and Fe(OH)3 are all in equilibrium. (10%)
(B) Please describe the electrochemical meaning of two dash lines in pE-pH diagram and explain the origin of slope of those dash lines. (5%)