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Senior High
Chemistry
E怎麼解
Chemistry
Senior High
5 monthsago
:)
E怎麼解
ADE7. 當大氣壓力為 765 mmHg 時,以閉口式壓力計測量一氦氣試樣的壓力,測得汞柱高 度差為120 mmHg,則下列敘述哪些正確? (A)氦氣的壓力為 120 mmHg (B) 氦氣的壓力為645mmHg (C) 加熱氦氣,兩端的汞 高度差不變(D)再導入少量的氦氣時,兩端的汞高度差變大(E)外界壓力減為760 mmHg,兩端的汞高度差不變。
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