BTE為可能造成土壤或地下水污染之石油碳氫化合物,何者有誤?

環境化學 exam選擇

Quiz
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Chemistry
•
University
•
Easy
Karen Chuang
Used 2+ times
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
BTEX為苯、甲苯、乙苯及二甲苯之簡稱
具高揮發性、高沸點及易溶於水之特性
苯於BTEX中對人體危害程度最高
皆為環境部地下水污染管列標準管列項目
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
定溫下可溶於液體中之氣體,該氣體在液體中之溶解度正比於該氣體在液面上之分壓,屬何種定律?
Poiseuille’s Law
Dalton’s Law
Graham’s Law
Henry’s Law
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有關薄膜處理技術之叙述,何者正確?
孔徑大小為 MF > NF > UF > RO
MF 適用於去除病毒
UF適用於去除一價離子,如Na+
NF適用於去除二價以上離子,如 Ca2+
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
某放射性物質之半衰期為 10 天,計算 20天輻射強度衰減值,何者正確?
1/2
1/4
1/8
1/16
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
水的硬度常以每百萬單位水中含有多少單位碳酸鈣表示,若總硬度為 350 ppm 的水, 其 1000 g 中相當於含有多少克之CaCO3?
0.0035
0.035
0.35
3.5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列構成天然水鹼度之主要成分,何者有誤?
𝑂𝐻−
𝐶𝑂3 2−
𝐻3𝑂 +
H𝐶𝑂3 –
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
某天測得空氣中之二氧化硫(SO2)平均濃度為30 ppb,假設溫度為 25°C,空氣分子量為29,該SO2在大氣中所占之莫耳分率為何?
1.36 × 10−8
1.36× 10−7
1.36× 10−6
1.36× 10−5
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