| 92年6月11日 10:30~12:00 化學系 | 誠實是我們珍視的美德， 我們喜愛「拒絕作弊，堅守正直」的你！ |
| 科目：物理化學和分析化學 | （共1頁第1頁） |
| A. | Physical Chemistry | |
| A-1. | One mole of an ideal gas at 25℃ expands isothermally into
an evacuated vessel, so that the pressure drop from 5 atm to 2 atm. Calculate
W,  U,
q, H,
S, A
and G.
(21%) |
|
| A-2. | Benzene has a normal boiling point at 80℃ and  =
30.76 KJ/mol. If benzene is to be boiled at 30℃in a vacuum distillation,
to what value of P must the pressure be lowered? (9%) |
|
| A-3. | Give the molecular orbital diagram for N2
and N
.Which of these species would you expect to become more stable and have
paramagnetic property.(10%) |
|
| A-4. | Give the free radical reaction mechanism for the photochemical reaction of H2 +Br2 —> 2HBr (10%) | |
| B. | Analytical Chemistry | |
| B-1. | Explain the following term | |
| (a) | ICP-MS | |
| (b) | Photoacoustic spectroscopy | |
| (c) | Attenuated total reflectance spectrometry | |
| (d) | DMA (dynamic mechanical analysis) (20%) | |
| B-2 | Describe briefly how to optimize separation condition for the following separation techniques: | |
| (a) | liquid chromatography | |
| (b) | capillary electrophoresis | |
| (c) | gas chromatography (15%) | |
| B-3. | List the characters of sample that are suitable to be analyzed by following separation techniques: | |
| (a) | Gel permeation chromatography | |
| (b) | Micellar electrokinetic capillary chromatography | |
| (c) | transmission electron microscope. | |
| (d) | Raman spectroscopy | |
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