物理 - 考試
By Zanna
at 2013-05-15T14:48
at 2013-05-15T14:48
Table of Contents
[課業] 國考課業相關問題,非歷屆考題的討論,如學理觀念的釐清。
第一題
壓力對熔點(凝固點)的關係
1.凝固時體積減少之物體,若加大壓力,則凝固點升高
假設一般物質凝固點為0度(體積減少),若加大壓力則凝固點變為
凝固點(熔點)大於0度。沸點升高
2.凝固時體積增加之物體,若加大壓力,則凝固點降低
水凝固點為0度(體積增加),凝固時體積會增加,加大壓力,凝固點
凝固點(熔點)會小於0度。沸點升高
壓力的觀點想請教一下我這樣子看是正確的嗎。沒有解答
第二題
20克的氧氣(氧原子量為16)和20克氦氣(氦原子量為4)
混合後,測其總壓為567毫米水銀柱,試求氧氣的分壓。
答案為63毫米水銀柱。不知道怎麼下手
--
第一題
壓力對熔點(凝固點)的關係
1.凝固時體積減少之物體,若加大壓力,則凝固點升高
假設一般物質凝固點為0度(體積減少),若加大壓力則凝固點變為
凝固點(熔點)大於0度。沸點升高
2.凝固時體積增加之物體,若加大壓力,則凝固點降低
水凝固點為0度(體積增加),凝固時體積會增加,加大壓力,凝固點
凝固點(熔點)會小於0度。沸點升高
壓力的觀點想請教一下我這樣子看是正確的嗎。沒有解答
第二題
20克的氧氣(氧原子量為16)和20克氦氣(氦原子量為4)
混合後,測其總壓為567毫米水銀柱,試求氧氣的分壓。
答案為63毫米水銀柱。不知道怎麼下手
--
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考試
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