化學丙級術科項目3~4

化學丙級術科項目3~4

9th - 12th Grade

40 Qs

quiz-placeholder

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化學丙級術科項目3~4

化學丙級術科項目3~4

Assessment

Quiz

Chemistry

9th - 12th Grade

Hard

Created by

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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