問題詳情
73. 人體到了水中，除了大氣壓之外，身體還必須額外承擔水的壓力。水的壓力非常大，只要潛到水面下六十公尺，人體所負荷的壓力即是平時地面的七倍。壓力增大了，氣體的溶解度也會增大，於是潛水員血液中的氣體含量這時會比平常高出許多，如果潛水員浮上水面的速度太快，血液中多餘的氣體來不及跑掉，氣體就會鑽到皮膚裡引起肌肉酸痛，嚴重時還會阻礙血液循環，造成身體缺氧、發生生命危險。這就是所謂的潛水夫病。為了避免發生潛水夫病，必須使用在人體裡的溶解度非常小的氣體來和氧氣混合供給潛水員呼吸。試問，最合適的氣體為何？
(A)H2
(B)N2
(C)He
(D)Ar
(A)H2
(B)N2
(C)He
(D)Ar
參考答案
答案：C
難度：適中0.5
統計：A(0),B(0),C(2),D(2),E(0)
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