课程名称︰分析化学一 课程性质︰必带 课程教师︰林万寅 开课学院：理学院 开课系所︰化学系 考试日期（年月日）︰2010/12/20 考试时限（分钟）：10 是否需发放奖励金：是 （如未明确表示，则不予发放） Department: Name: Registered number: 是非题；每题4分，答错倒扣 2分，不答0分。 (O) 1. The rotational energy is usually smaller than the electronic energy. (X) 2. There are 3 vibrational modes for a CO2 molecule. (X) 3. The electronic transitions of a molecule usually fall in the infrared region. (O) 4. Absorption of microwave radiation may induce rotational transitions. (X) 5. When the absorbance of a solution is 0.1, 10% of the light is transmitted. (O) 6. Intersystem crossing involves the change of spin state. (X) 7. Glass cuvets are normally used for UV measurements. (X) 8. The lifetime of fluorescence is usually longer than that of phosphorescence (O) 9. The energy of fluorescence is usually larger than that of phosphorescence for a given molecule. (O) 10. An excitation spectrum is taken at a fixed emission wavelength. --

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