2SO2(g)+O2(g)
2SO3 (g)反应过程中能量变化如图所示。已知1 molSO2(g) 被氧化为1 mol SO3时的△H=-99 kJ·mol-1。请回答下列问题：
(1)图中A、C分别表示____、____，E的大小对该反应的反应热有无影响？_________。
(2)图中△H=________ kJ·mol-1。
(3)V2O5的催化循环机理可能为：V2O5氧化SO2时，自身被还原为四价钒化合物；四价钒化合物再被氧气氧化。写出该催化循环机理的化学方程式_________。
(1)反应物能量；生成物能量；没有影响；
(2)-198
(3)SO2+V2O5=SO3+2VO2;4VO2+O2=2V2O5
It is fine Sunday. Jenny and her mother are on the 1 . They want to go to 2 . There are many children on it. Their parents are telling stories to 3 . An old man gets 4 the bus. He has no seat(座位) to sit in. Jenny asks him to sit in her seat. The old man 5 Jenny. There are two foreigners(外国人) on the bus. They want to go to the Great Wall, too. But they 6 speak Chinese. Jenny talks to them in English. She tells them Beijing is a big city 7 a long history. And the Palace Museum is very famous, too. She tells stories 8 the Palace Museum. At the same time they learn about a lot of Chinese culture(文化) from Jenny. They think the stories are 9 and they want to visit other places of interest in China soon. Can their dream 10 ? Of course.
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