[問題] 高中物理的氣體動力論 102指考
下列關於體積固定之密閉容器內理想氣體的性質敘述,何者正確?
(A)壓力和分子平均動量的平方成正比
(B)壓力和所有氣體分子之移動動能的和成正比
(C)溫度升高時,每一個氣體分子的動能都會增加
(D)溫度下降時,密閉容器內理想氣體的壓力升高
(E)氣體分子和容器壁的碰撞是否為彈性碰撞,並不會影響壓力的量值
答案是B
B 毫無疑問對的
但A選項
「分子平均動量」 到底是指「總動量」或是「個別動量」
我覺得個別動量的平方與壓力成正比是對的
這個題目的用詞是不是有其不妥的地方呢
請大家指教
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