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21. Which of the following statements is correct?
(A)For 2H2(g) + O2(g) → 2H2O(l), its   is larger than 0 (> 0)
(B)The So of C2H5OH(l) is larger than the So of C2H5OH(g)
(C)One mol N2 (at STP) has more positional probability than 1 mol N2 at 100 K, 2.0 atm.
(D) The sign of   for the process of H2O(l) → H2O(g) is positive (+).
(E)At constant T and P, the change with   is not a spontaneous process.

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 【站僕】摩檸Morning：有沒有達人來解釋一下?
倒數 2天 ,已有 1 則答案
uu(已上榜) 高三下 (2023/08/23):
(A) For 2H2(g) + O2(g) → 2H2O(l), its 938631-0-5eb82a21bde61.png#s-35,30 is larger than 0 (> 0) 是小於0，因亂度變小(氣變液)
(B) The So of C2H5OH(l) is larger than the So of C2H5OH(g)是小於因為液體亂度較小
(C) One mol N2 (at STP) has more positional probability than 1 mol N2 at 100 K, 2.0 atm.positional probability位置概率，增加溫度會增加熵，因為任何給定的氣體粒子都有更廣泛的可能速度（能量狀態），從而增加能量概率。
(D) The sign of 938631-1-5eb82a2364bfb.png#s-49,31 for the process of H2O(l) → H2O(g) is positive (+). 是負的，因為環境要給系統熱
(E) At constant T and P, the change with 938631-2-5eb82a24e6e2e.png#s-300,27 is not a spontaneous process.
G=H-TS -10000-(298*5)<0 是自發
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21. Which of the following statements is..-阿摩線上測驗