問題詳情
8. The decomposition of ethanol (C2H5OH) on an alumina (Al2O3) surface, C2H5OH(g) → C2H4(g) + H2O(g), was studied at 600K. Concentration versus time data were collected for this reaction, and the plot of Aversus time resulted in a straight line witha slope of -4.00 × 10-5 mol/L*s. If the initial concentration of ethanol was 1.25 × 10-2 M, the time required to decompose allethanol was .
(A)5.22 min
(B)313 min
(C)156 min
(D) 31.3 min
(E)0.26 min
(A)5.22 min
(B)313 min
(C)156 min
(D) 31.3 min
(E)0.26 min
參考答案
答案：A
難度：困難0.32
統計：A(8),B(5),C(3),D(3),E(0)
內容推薦
- 一般俗稱的債券殖利率是指下列何者？(A)到期收益率(B)當期收益率 (C)贖回收益率(D)資本利得收益率
- 所謂「黃金交叉」是指：(A)30日平均線跌破72日平均線(B)K值跌破D值(C)30日平均線由下往上突破72日平均線(D) + DI線跌石皮一DI線
- 依效率市場假說，限制股價的漲跌幅，將使股價反映訊息的時間：(A)延長(B)加速(C)不受影響(D)不一定
- A certain reaction has an activation energy of 0 kJ/mol. As the temperature is increased from
- Which of the following statements is correct?(A)HBr has boiling point higher than Kr and Cl2(B)H
- 特別股相對於普通股的優勢是：(A)特別股股東具有優先普通股發放股利的權利(B)特別股股利通常是無法累積的(C)特別股具有較高的報酬率(D)特別股股東具有選舉權
- 強生公司今年發放5元現金股利，預期下一年之股東權益報酬率為5%，且其股票需求(Required) 報酬率為11%。若強生公司股利發放率每年固定為40%，請問下一年之現金股利應為何？(A
- 若某個別證券的報酬位於SML之上方，表示：(A)個別證券未能提供預期報酬率(B)價格被低估(C)對該證券的需求將會減少(D)價格被高估
- A 6-g sample of acetylene (C2H2) produced a temperature increase of 9℃ in a bomb calorimete
- Which of the following statements is correct?(A)In HF, its bonding molecular orbital has greater
內容推薦
- 何者屬於時間的技術指標？(A)股市周期循環(B)趨向指標DMI (C)平均成交量(D)超買超賣指標OBOS
- You have 0 mL of 0.10 M HA. After adding 0 mL of 0.10 M NaOH, the pH of the HA-NaOH soluti
- For the reaction PCl5(g) PCl3(g) + Cl2(g) at 327℃, the equilibrium constant, Kp, is Suppose
- 為了使投資組合之風險不要太高，選股時應(A)集中某類股投資(C)選擇高成長之股票(B)選擇低成長之股票(D)選擇性質不同之股票投資
- 下列何種情況會造成貨幣供給增加？(A)降低存款準備率(B)提高重點現率 (C)中央銀行標售國庫券(D)出口減少
- Kf for the complex ion Ag(NH3)2+ is 7 × 10Ksp for AgCl is 6 × 10-Calculate the molar
- Which of the following 0.10 M solutions are correctly arranged in order of the strongest acidic
- 三、某流體機械的扭矩 T 為其特徵直徑 D、角速度 ω、流體密度 ρ 及體積流率 Q 的函數，試以因次分析求此無因次之函數。（20 分）
- The pH of a 0.05 M solution of trichloroacetic acid (CCl3CO2H), a corrosive acid used to precipi
- 四、某離心式風扇的直徑為 00 m。該風扇以 600 rpm驅動密度為 00 kg/m3的空氣時，所需要的功率為 12 kW。假設效率不變，而該風扇改以 900 rpm驅動密度為 20 k
- 五、某直接作動式蒸汽幫浦（Direct-acting steam pump）的蒸汽側與液體側之活塞直徑分別為 150 mm 與 60 mm，其機械效率為 65%。若此時蒸汽側之淨壓力為 150 kPa
- 六、請寫出柏努利方程式（Bernoulli equation），並說明此方程式成立的基本假設。（10 分）
- The “Unsinkable Titanic” sank on its first voyage after striking an iceberg. It was one of the gr
- When the world economy continued to grow rapidly, some economists cautioned political leaders ag
- Olga turned down the volume on the CD player. Otherwise, the neighbors probably _____ to complai
- Head delegations from the countries are now at the negotiation tables in the first round of _____
- What is the for H2O(g) + (1/2)O2(g) ←→ H2O2(g) at 600. K using the following data:H2(g) + O2(g)
- Birds are often thought of as flying reptiles _____ a lot of features in common.(A) in that they
- _____, she would have caught the train.(A) Had she hurried (B) If she has hurried (C) If she hur
- She always had to _____ to her father’s wishes, whether or not she agreed with him. He wishes tha
- Unfortunately there are some _____ between urban and rural educational systems. It is true that
- _____ that the world’s population will reach ten billion by the year 20(A) Its estimation (B)
- According to the article, people who speak English as their native language might understand
- James Brooks is considered by many around him to be a(n) _____. They don’t expect him to help oth
- If a person continues to drink and drive, then the police should immediately _____ his driver’s