题干

一定温度下,lmol TaI4和n mol S2在2L的密闭容器中发生反应TaI4(g)+S2(g)2TaS2(s)+2I2(g),t min后达到平衡,此时生成2a mol I2。下列说法正确的是          (   )

A:用TaI4表示此反应的反应速率是mol/(L·min)

B:向平衡后的体系中加入lmol TaS2,平衡向逆反应方向移动

C:给平衡后的体系升温,化学平衡一定移动

D:向平衡后的体系中充入lmol TaI4,v(正)增大,v(逆)减小,平衡正向移动

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C

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    It was a late Wednesday night when the dreading phone call reached our home. I sat up, somehow terrified, so I could hear the phone call better. To my surprise, I heard my mom burst into tears. “Get the car, Dean! Andrea has been in a car accident.”

    We ran every stop sign on the way to the hospital and our tires screeched around every corner. We got to the hospital, but were not allowed to see Andrea. The next morning, after wearing masks, we were allowed to go to the ICU to see Andrea. Well, the least I could say was that everything was injured in her body and she lost all of her memories. It was a fatal accident.

    Over the next two months, I lived more at the hospital than I did at my house. I watched as Andrea worked so hard to gain back everyday motor skills. She never once complained or pitied herself; her determined spirit was shining through. After two weeks in the ICU and two months of the regular hospital treatment, Andrea was able to come home. She missed several months of school, so it was hard for her to catch up. Andrea had tasks to accomplish, and no matter how hard it was, she stuck with them until the job was done. Though busy with dealing with pain and therapy, she always found time to love and play with me.

    I'll never forget the impact that this incident made on my life. I admire her strong-willed personality and her determined spirit. Today she is perfectly normal, despite the scars and the pins holding her leg in place. I couldn't ask for a better sister, hero, or best friend.