
水溶液005_溫度與溶解度

Quiz
•
Science
•
7th - 8th Grade
•
Medium
鄭之偉 鄭之偉
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16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一種方法,可增加硝酸鉀在水中的溶解度?
加入更多的水
加入更多的硝酸鉀
升高溫度
用玻璃棒攪拌
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
秉章想要養孔雀魚,則最好別使用下列哪一種水來養魚?
礦泉水
湖水
煮沸後剛冷卻的開水
溪水
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
市面上流行一種許願水晶,首先用100℃的沸水溶解晶粉,緩慢冷卻一天後,再將蓋子打開使水緩緩蒸發,最後就可以在瓶底觀察到美麗的結晶。試問這種許願水晶的原理為何?
溫度不同、擴散速度不同
溫度不同、溶解度不同
溫度不同、飽和溶液濃度均相同
溫度不同、溶質溶解量相同
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
測量不同溫度下100克的水所能溶解某化合物的最大質量(以S表示),結果記錄於表中。下列哪一圖可表示實驗的結果?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
甲.溫度;乙.氧氣量;丙.水量;上述何者可以影響氧氣在水中的溶解度?(題目問的是溶解度,不是問溶解總量!)
甲乙丙
甲乙
乙丙
甲
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
固體溶質在水中的溶解度會隨著水溫的升高而有何變化?
增加
減少
可能增加,也可能減少
固體溶質在水中的溶解度和水溫沒有關係
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一定量的水在下列哪一個溫度下可以溶解較多的氧氣?
15℃
20℃
25℃
30℃
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