题目

My name is Kate. There are many rules in my life. I think these rules are important for me. At home, I can’t play computer games for more than (超过) half an hour. I think it is good for my study because I can have more time to study. I must make the bed after I get up. And I must clean my room every day. So my bedroom is always clean and tidy. My mother says keeping room tidy is good for my health. I study at Fuxing Middle School. At our school, we also have some rules. We can’t be late for school. So we must arrive at school on time. We must get to school before half past seven in the 一定温度下可逆反应2A?B+C达到平衡状态．请回答下列问题：（1）若温度升高，平衡向正反应方向移动，则逆反应是______反应（填“放热”或“吸热”）．（2）若B为固体，降低压强平衡向逆反应方向移动，则A的状态是______（填写“固态”、“液态”或“气态”，下同）．（3）若A是气态时，加压时，平衡不移动，则B的状态是______，C的状态是______．