課程名稱︰環境土壤化學
課程性質︰土壤化學，探討土壤如何跟空氣與水作用。
同時探討水與空氣在環境中的汙染，如何改善等
課程教師︰李達源教授，陳佩貞助理教授。此試卷乃陳老師出題。
開課學院：農業化學系
開課系所︰大三必修
考試日期（年月日）︰Apr. 18, 2008
考試時限（分鐘）：兩節課中間不休息，110分鐘
是否需發放獎勵金：是
（如未明確表示，則不予發放）
試題 :
1. Define the following terms (20pt.)
a) Nitrification
b) Albedo
c) Primary Air pollutants
d) Secondary Air Pollutants
e) BODs
2. Unit conversion. Please provide with detailed calculations. (12pt.)
MW: S = 32, O = 16, N = 14
a) 2600ppm = ? mM SO4^2-
b) 50 ppbv = ? molecules NO3/cm^3
c) 2500 DUs O3/1000km^2 = ? molecules O3/1000km^2
3. Draw a diagram showing the four main layers into which the atmosphere can
be divided. Label the diagram to show the following. (12pt.)
a) Name of each layer in Chinese and English. (4pt.)
b) The distance of the two major layers closest to the Earth extend out
from the Earth's surface, and label the distance of the boundary layer
(3pt.)
c) The change in temperatures in temperature with increasing distance from
the surface of the Earth.
d) Label the ozone layer. (2pt.)
4. a) List 5 important greenhouse gases that you learn IN CLASS (5pt.)
b) Describe what is meant by "the atmospheric window" (5pt.)
c) According the provided infrared absorption spectrum of gas X, explain
which of the these absorptions of this gas is considered to cause the
greenhouse effects? Why? (5pt.)
5. a) They hydroxyl radical can be formed from the photolysis of water and
act as a catalyst for ozone destruction. Show these reactions. (5pt.)
b) For the following reactions: (5pt.)
NO2 + O3 → NO3 + O2
NO3 + hv → NO2 + O
What is the catalyst?
Why is it chain reaction?
Write the overall reaction?
6. a) Reorganize the order of the following chemical reactions, show how
tropospheric ozone is formed from the reaction of NO2 and sunlight. How
many hydroxyl radicals are formed from one NO2 molecule? (5pt.)
b) Which of the following HCs would react faster with hydroxyl radicals?
Why? (5pt.)
(1) Butane or octane
(2) Benzene or xylene
c) List criteria air pollutants regulated by Taiwan EPA. List three
methods you can use to measure these criteria air pollutants. (5pt.)
7. Water with an alkalinity of 2.5mM has a pH of 10. Calculate [CO2], [HCO3^-]
[CO3^2-] and [OH^-] in such water? (10pt.)
8. Determine pE for waste water that contains 5.0 x 10^-5 M H3AsO4 and
5.0 x 10^-7 M H3AsO3. Does this wastewater favor oxidation or reduction?
(7pt.)
H3AsO4 + 2H^+ 2e^- → H3AsO3 + H2O pE = 9.73
9. List three diffrerent methods for trmoving partuculate matters )PMs) from
industrial emission and describe how they remove PMs. Compare the pros and
cons of the three methods. (8pt.)
試卷到此為止
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◆ From: 140.112.249.137
※ 編輯: Jman208 來自: 140.112.249.137 (04/21 13:34)
※ 編輯: Jman208 來自: 140.112.249.137 (04/21 13:34)