问题
填空题
在容积相同的密闭容器中，分别充入等量的氮气和氢气，在不同温度下发生反应：N2(g)+3
，并分别在tmin测定其中NH3的质量分数，绘成如下图像，请回答：
A、B、C、D、E五点中，尚未达化学平衡状态的点是（）
答案
参考答案：A、B
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在容积相同的密闭容器中，分别充入等量的氮气和氢气，在不同温度下发生反应：N2(g)+3
，并分别在tmin测定其中NH3的质量分数，绘成如下图像，请回答：
A、B、C、D、E五点中，尚未达化学平衡状态的点是（）
参考答案：A、B
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| You make a living by what you get, but you make a life by what you give. Winston Churchill When I was young, my father had a small 1 . Each of the seven children in our family worked in our father's 2 . As we worked and watched, we 3 that work was about more than survival and making a sale. One 4 is still existing in my mind. It was shortly before 5 . I was working evenings, straightening the 6 section. A little boy, five or six years old, came in. He looked poor to me-too poor to 7 to buy anything. He looked around the toy section, 8 this item and that, and 9 put them back in their place. Dad came down the stairs and 10 over to the boy. His blue eyes smiled as he asked the boy 11 he could do for him. The boy said he was looking for a Christmas present for his brother. I was 12 that Dad treated him with the same respect as any adult. Dad told him to take his time and look around. He did. After about 20 minutes, the little boy carefully picked up a toy plane, walked up to my dad and said, "How 13 for this, Mister?" "How much you got?" Dad 14 . The little boy held out his hand and 15 it. In his hand lay 27 cents. The 16 on the toy plane he'd picked out was $3.98. "That'll be 17 about to do it," Dad said as he closed the 18 . Dad's reply still rings in my ears. I 19 about what I'd seen as I wrapped the present. When the 20 boy walked out of the store, I saw a child with a treasure. | ||||
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