問題詳情
22.放熱反應 Zn(s)+H2SO4(aq) → Zn2+(aq)+SO42-(aq)+H2(g),如欲使瞬間正反應速率增加,可利用以下哪些方法?
(A)溫度升高
(B)加入 ZnSO4 以增加 Zn2+離子濃度
(C)將鋅磨成更細的粉狀
(D)溫度降低 (E)增加總壓力。
(A)溫度升高
(B)加入 ZnSO4 以增加 Zn2+離子濃度
(C)將鋅磨成更細的粉狀
(D)溫度降低 (E)增加總壓力。
參考答案
答案:[無官方正解]
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
內容推薦
- ____ the future. It is impossible to know in advance what will happen.(A) There is no predicting
- Life now is much more comfortable and convenient in _____ with life a few centuries ago.(A) comm
- 一、本題描述如下:⑴下圖元件:PH 為光電開關、T1(設定 5 秒)與 T2(設定 8 秒)為 Timer On DelayRelay、M1 與 M2 為電磁電驛、X1 與 X2 為輔助電驛、C1 為
- How could he be the _______? We were having dinner together when the house was said to be broken
- When the mayor decided to stop repairing city streets, _____ came pouring in. Hewas surprised at
- Professor Richard Wiseman loves “quirkology” and he has (16) investigating strange things that happe
- The teachers said it is unwise for the government to cut the education _______. After all, the f
- People flock to see the new photography _____ at the museum.(A) definition (B) democracy (C) exh
- 在語言課室中,教師要學生分組討論(三人一組)進行一項任務,最後上臺做角色扮演。情境是在一個大風雪的晚上,兩個一起旅行的朋友因為找不到住的地方,在一家旅館的櫃檯前,請求給予協助。設想你是這位教師,
- 【題組】(A) Hopefully (B) Surprisingly(C) Unfortunately (D) Respectively
內容推薦
- Having so many characters and many different story lines, this novel is indeedvery ____.(A) comp
- 【題組】(A) which (B) what (C) when (D) where
- 活化能較大的反應,係指下列何敘述? (A)隨溫度上升,反應速率之增加率較大 (B)隨溫度上升,因活化能較大,故反應速率無顯著增大 (C)使反應開始發生時,需供應較多之能量 (D)反應熱較大 (E
- In addition to____ me money, he told me____ .(A) give, whom to turn to for help (B) giving, how s
- 【題組】(A) Instead (B) However (C) Similarly (D) Therefore
- IV. Sentence Patterns,15% 每題一分____ the earth____ , he spared no effort to arouse people’s conscio
- 【題組】(A) commonly-heard (B) commonly-hearing(C) common-heard (D) common-hearing
- 放射性物質衰變至僅剩原來一半量所需時間稱半生期,已知放射性物質的衰 變爲一級反應,其半生期爲定値,與濃度無關。今有一批含某一種放射性之鋼 筋,其中所含放射性物質的半生期爲一年,且衰變後即無放射性
- ※根據華南地區河川的水文特性推測,若在該地區某河川興建水庫,則水庫下游水文測站觀測的水位變化曲線,會產生顯著差異。下圖中的兩條曲線分別表示該水文測站在水庫完成前後的水位變化。請回答下列問題:【題組】4
- 【題組】(A) developed (B) dominated (C) soothed (D) reviewed
- Our teacher makes it a rule for us____ to English radio programs every day.(A) to listen (B) of l
- 【題組】(A) views (B) viewed (C) view (D) viewing
- (A) The man with a helmet was seen break into the bank.(B) He has never been heard to speak ill o
- 下列敘述,何者正確? (A)10℃時,純水之 pH=13,則其[OH-]=10-87 (B)10-8M 的 HCl 溶液其 pH=8(C)60℃時,=7 的溶液為酸性 (D)在 80℃時
- 【題組】(A) how (B) when (C) what (D) why
- 某反應 A(g)+54kJ→B(g),則下列敘述何者正確? (A)正反應活化能必大於 54kJ (B)逆反活化能必小於54kJ (C)反應的活化能為 54kJ (D)活化錯合物的位能為 54kJ
- 【題組】(A) for (B) to (C) without (D) with
- (A) The exhibition in the Palace Museum is worth to be seen.(B) It is worthwhile seeing the exhib
- 下列對於酸鹼的命名,何者錯誤? (A)H2MnO4:過錳酸 (B)H2S:硫酸 (C)H3PO2:次磷酸(D)Fe(OH)2:氫氧化鐵(II) (E)Sn(OH)2:氫氧化亞錫
- 【題組】(A) cultural (B) emotional (C) mental (D) visual
- 下列有關活化能的敘述,何者正確? (A)活化能定義為活化錯合物的位能 (B)化能愈大,反應熱愈大(C)溫度愈高則活化能愈低,因此反應速率愈快 (D)活化能愈小則低限能也愈小
- Do you complain of having a poor memory? Do you believe all those memory problems you suffer __56__
- (A) On hearing the bad news, Aileen could not help but crying.(B) On hearing the bad news, Ailee
- 在常溫下,下列反應速率最摱的是 (A)3Fe2+(aq)+NO3-(aq)+4H+(aq)→3Fe3+(aq)+NO(g)+2H2O(ℓ)(B)CH4(g)+2O2(g)→CO2(g)+2H2O
- VI. Reading Comprehension 5%,每題一分 Scrabble is a popular word game with American families. It is rep