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化二甲_食的戰爭

Chemistry

8th - 9th Grade

Used 8+ times

化二甲_食的戰爭
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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

何者為熱量傳送動力

溫度差
濃度差
壓力差
速度差

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

何者不屬於熱量傳送的方式?

傳導
對流
輻射
蒸發

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

依照傅立葉傳導定律,下列何項正確

q∝Δx
q∝A
q∝(1/ΔT)
q∝ΔT的平方根

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列物質的熱傳導係數(k)比大小為何?
①非金屬固體②液體③氣體④金屬固體

④>①>②>③
②>①>④>③
①>②>③>④
④>②>①>③

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列何者之導熱係數(k)最大

空氣
橡膠

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

導熱係數(k)之單位?

kcal/hr⋅m2⋅K
kcal/hr⋅m⋅K
kcal/hr
kW/m⋅kg⋅K

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列關於物質導熱係數(k)的敘述,何者錯誤

溫度↑,金屬的k下降
溫度↓,氣體的k下降
k值越大,傳導能力越好
k值越小,越適合作絕熱材料

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