
化學丙級術科項目3~4
Quiz
•
Chemistry
•
9th - 12th Grade
•
Hard
郭政郎 郭政郎
Used 3+ times
FREE Resource
40 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一系統之真空度為 520mmHg,則其絕對壓力為多少 Psi ?
4.64
10.08
14.78
24.78
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
真空表上的讀數為 600mmHg 時,表示真空系統內的絕對壓力為多少 mmHg
16
60
160
600
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
真空表顯示 70cmHg 是表示容器內之壓力為多少 cmHg
6
69
83
690
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
熱電偶測定溫度之原理是溫度愈高,造成
電壓愈高
電壓愈低
電流愈高
電流愈低
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
貝克曼溫度計因球部相當大,應用於凝固點下降之測定時
寒劑溫度要很低,冷卻速度越快越好
待測液體不可以攪拌
寒劑溫度不要太低,冷 卻速度不要太快
利用貝克曼溫度計邊測邊攪拌
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
電石(CaC2)加水可產生何種氣體?
CH4
CO2
CO
C2H2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
石灰石常可略溶於水中而成暫時硬水乃因
自然水中溶有 CO2
自然水呈弱鹼性
CaCO3 呈弱鹼性
因石灰石中含有不純物
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