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範例:奈米碳管[93學測]

科學家計劃製造一座「太空電梯」,以探測外太空與火星。支撐這座「太空電梯」的纜繩是一束由十億條、長達十萬公里的奈米碳管所製成,每條奈米碳管含有7.2×1017 個碳原子。試估計這束纜繩至少需要多少公斤的碳來製備?(A) 0 .12 (B) 2.40 (C) 7.20 (D) 14.4 (E) 28.8

 

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Posted in 歷屆學測(推甄)考題, 歷屆學測試題, 物質的組成, 緒論.

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