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原题(1)氧气分子在O℃和100℃温度下单位速率间隔的分子数占总分子数的百分比随气体分子速率的变化分别如图1中两条曲线所示。下列说法正确的是____。A.图中两条曲线下面积相等B.图中虚线对应于氧气分子平均动能较小的情形C.图中实线对应于氧气分子在100℃时的情形D.图中曲线给出了任意速率区间的氧气分子数目E.与0℃时相比,100℃时氧气分子速率出现在0~400 m/s区间内的分子数占总分子数的百分比
The original title (1) Oxygen molecules at a temperature of 100 ℃ and the unit rate of the number of molecules in the total number of molecules as a percentage of molecular gas rate changes as shown in Figure 1, two curves. The following is correct ____. A. The area under the two curves in the figure is equal B. The dotted line in the figure corresponds to the case where the average kinetic energy of oxygen molecules is small C. The solid line in the figure corresponds to the situation when the oxygen molecule is at 100 ° C. The graph in the figure gives the arbitrary The number of oxygen molecules in the rate interval E. The percentage of the number of molecules in the range of 0 to 400 m / s in the range of 0 to 400 m / s as a percentage of the total number of molecules at 100 ° C