在便利商店所賣的飯團,常以5 ℃冷藏的方式儲存1~2 天而不壞。依反應速率而言,是什麼因素使御飯團保鮮時間延長?
4~1影響反應速率的因素

Quiz
•
Chemistry
•
8th - 9th Grade
•
Easy

CHEN HSI CHUAN
Used 4+ times
FREE Resource
17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
濃度
接觸面積
溫度
催化劑
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一項不能作為反應速率的單位?
M/秒
莫耳/分
公尺/秒
毫升/秒
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
關於催化劑的敘述,下列哪一項錯誤?
催化劑有選擇性,不同的反應要用不同的催化劑
所有的反應都有催化劑,也都一定要加催化劑
催化劑同時提高正、逆反應的反應速率
生物體內具有催化作用的物質稱為酶或酵素
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
雙氧水塗在受傷流血的皮膚上會很快的冒出氣泡,最主要的原因為何?
流血的皮膚溫度高
血液內含雙氧水分解的催化劑
受傷皮膚表面較粗糙
受傷皮膚內含有氧氣
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者是反應時,因為溫度的關係,使得反應速率改變的實例?
線香在純氧中燃燒
雙氧水加二氧化錳
夏天時牛奶容易腐壞
烤肉起火時木炭敲成碎片
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
大部分的加油站其油庫均建置在地底,其主要原因為何?
可降低溫度,避免發生危險
減少建築空間
節省成本
較具隱密性
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
相同濃度和質量的雙氧水不加二氧化錳和加入少許二氧化錳所產生的氧,在單位時間內,何者量較多?
前者
後者
相等
不一定
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