在1atm下,一純物質甲的熔點和沸點如表所示,則在-20℃時,此物質的主要狀態為下列何者?
國中自然2上ch2-1認識物質

Quiz
•
Biology
•
8th Grade
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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
30 sec • 5 pts
固態
液態
氣態
固、液態共存
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
下列有關物質的三態敘述,何者錯誤?
物質由固體直接變為氣體的現象稱為昇華
從粒子模型來看,物質在固態時最鬆散
液體有一定量的體積但無固定的形狀
物質由固體變成液體,再變成氣體的過程皆為物理變化
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
將空氣、氧氣、氮氣分別盛於甲、乙、丙三個廣口瓶中,若以點燃的線香分別插入,其燃燒的劇烈程度為何?
甲>乙>丙
乙>丙>甲
乙>甲>丙
甲=乙=丙
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
附圖對於儀器的名稱標示,請問下列哪個名稱標示錯誤?
甲
乙
丙
丁
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
有關空氣的敘述,下列何者正確?
只含有氮、氧、氖、氦、氫五種氣體
常溫下性質穩定,幾乎不與其他物質反應
氧的沸點低,故低溫的液態氧可做冷凍劑
空氣中的二氧化碳、水蒸氣的含量固定,約占0.05%
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
下列物質的特性中,哪一個不屬於物理性質?
外觀、顏色
熔點、沸點
可燃性
密度
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
自來水、食鹽水、二氧化碳、碳酸鈣、空氣、鐵,以上六種物質屬於純物質的組合何者正確?
自來水、空氣
二氧化碳、碳酸鈣、鐵
自來水、食鹽水、二氧化碳
食鹽水、二氧化碳、碳酸鈣、空氣、鐵
8.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
在日常生活中,戴著眼鏡吃熱麵時,鏡片常會模糊不清,這種現象的主要原因為下列何者?
水蒸氣直接附著在鏡片上
鏡片上的汙垢,遇到熱氣顯現出來
水蒸氣碰到溫度比它低的鏡片,凝結成小水滴附著在鏡片上
空氣中有不明汙染物,附著在鏡片上
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