=92C= 3. The reaction NO(g)+O3(g) → NO2(g)+O2(g) was studied by performing the flooding technique. When [O3]=1.0*10^14 mole/cm3,the change of [NO] with time is shown in Table 1. When [NO]=2.0*10^14 mole/cm3,the change of [O3] with time is shown in Table 2. Table 1 Table 2 ------------------------------------------------------------------------- Time [NO] Time [O3] (ms) (mole/cm3) (ms) (mole/cm3) 0 6.0*10^8 0 1.0*10^10 100 5.0*10^8 50 8.4*10^9 500 2.4*10^8 100 7.0*10^9 700 1.7*10^8 200 4.9*10^9 1000 9.9*10^7 300 3.4*10^9 (a)Using the graphs to determine the rate order with respect to [NO] and [O3]? (b)Determine the rate law and evaluate to rate constant for this reaction. (c)Propose a mechanism and explain how it can match with the experimental data. 第一題級數我是用半生期去看，然後比例大約都是1，所以兩個的級數我都寫1， 但是不知道是不是這樣看 第二題用他給的[NO]和[O3]濃度用一級去代然後列出式子去算k 第三題不知道要怎麼寫 =93年= 2.(a)Discuss what happens to the energy level for an electron trapped in a one-dimensional box as the length of the box increases. (b)Which has the lowest(ground-state)energy,an electron trapped in a one-dimensional box of the length 10^-6 or one with 10^-10? 3.One of the biggest challenges in preparing fuel for nuclear power plants is to separate the isotopes of uranium. (a)Why is it not possible to separate the isotopes of uranium by chemical means? (b)How are the isotopes of uranium separated? 第二題不曉得在問甚麼，第三題也只寫出用慢中子撞擊去分開，其他不知道要怎麼回 答 以上 麻煩版友幫忙解惑 小女子感激不盡!!! --

※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 119.77.222.54