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31. 預測反應 的△H 和△S 的符號(–、+ 或 0),依序為:(A) +, – (B) 0, + (C) +, + (D) –, –
問題詳情
31. 預測反應
的△H 和△S 的符號(–、+ 或 0),依序為:
(A) +, –
(B) 0, +
(C) +, +
(D) –, –
參考答案
答案:A
難度:
適中
0.6
書單:
沒有書單,新增
用户評論
【
po
】評論
是葡萄糖的燃燒(放熱,H<0)的逆反應,故H為+比較左右兩邊的係數和是減少,故S為-
【
111待上榜
】評論
氣體莫耳數反應前(12)~反應後(7). 亂度減少
上一篇 :
27. 如櫃中同時有油、水及不潔物質等三者混合在一起,且假定三者皆以直徑d的小圓珠存在。且 為水比重, 為油比重, 為雜質比重,g為重力加速度,則其油與雜質間的分離力應為 (A) (B) (C)
下一篇 :
32. 加熱碳酸氫鈉可製得碳酸鈉:2NaHCO3(s) → Na2CO3(s) + CO2(g) + H2O(g)假設 25°C 下,此反應 △H° = 128.9 kJ/mol 和 △G° = 33
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