作者blueclothes (the only one)
看板Chemistry
標題[學習]想再請問各位幾題~
時間Sun Oct 4 18:42:51 2009
1. In a gas sample at room temperature, which of the following states will
have the greatest number of molecules occupying states other than the lowest
energy state?
(a) electronic energy state
(b) rotational energy state
(c) vibrational energy state
(d) nuclear spin state
(e) none of the above, since all of the molecules will be in the ground state
at room temperature
答案是(B)
我看不懂題目在問什麼@@
2. the types of energy levels that are evenly spaced include which of the
following?
I. Rotational (rigid rotator)
II. Vibrational (harmonic oscillator)
III. Electronic (Born-Oppenheimer approximation)
(a) I only
(b) II only
(c) III only
(d) I and II
(e) II and III
答案是B 同樣也是看不懂再問什麼><
3. In which of the following reactions is the equilibrium farthest to
the left?
(a) P4O10 + xH2O --> 4H3PO4(aq)
(b) AlCl3 + xH2O --> [Al(H2O)6]3+ + 3Cl- (aq)
(c) Li2O + x H2O --> 2Li+(aq) + 2OH-(aq)
(d) H2S + xH2O --> H3O+ +HS-(aq)
(e) CaC2 + xH2O --> Ca2+(aq) + 2OH-(aq) +C2H2(g)
答案是d
麻煩各位強者了<(_ _)>
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◆ From: 114.33.53.76
1F：推 edisonjang:1.在室溫之下 不會發生vibration更不會發生ele. state 10/04 19:34
2F：→ edisonjang:原/分子的特性於rt.會發生 移動及轉動!至於spin 就不 10/04 19:35
3F：→ edisonjang:會發生,核自旋應該是要外加磁場才會發生吧(?) 10/04 19:37
4F：→ edisonjang:所以選擇 轉動能態 10/04 19:38
※ 編輯: blueclothes 來自: 114.33.53.76 (10/04 19:59)