國中自然2下ch4-1反應速率
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Medium
翰林出版國中自然 翰林出版國中自然
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8 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
鐵在純氧中的潮溼環境比在空氣中易生鏽,是受到下列哪一項因素所影響?
接觸面積
催化劑
溫度
濃度
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
在「大理岩和鹽酸」的反應過程中,觀察下列何者較適合用來判斷反應速率的快慢?
氫氣的產量
二氧化碳產生的速率
大理石的消耗量
鹽酸的消耗量
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
大理岩與酸反應,當表面積相同時,反應速率與[H+]成正比。今取大小相等的大理岩四片,分別投入下列水溶液中,則哪一個反應最慢?
1M鹽酸
0.1M鹽酸
0.1M醋酸
0.1M硫酸
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列哪一項不能作為反應速率的單位?
M/秒
莫耳/分
公克/秒
公克/立方公分
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
消防隊員在滅火時,將水噴成細霧狀,最主要是為了下列何種原因?
降低水的溫度
水遇到火可以產生二氧化碳
增加水與周遭環境的接觸面積
降低從水管中噴射而出的水柱壓力
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
家中吃不完的剩菜剩飯,應放入冰箱中冷藏,較不易腐敗。這合乎影響反應速率的變因中之哪一項因素?
溫度
顆粒大小
濃度
表面積
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
放在空氣中的紙張,雖然與氧氣分子不斷碰撞,卻不會有燃燒現象,請問這主要是因為下列哪一個條件不足?
碰撞次數
接觸面積
氧氣濃度
反應粒子具備的能量
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