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工业上用CO生产燃料甲醇.一定条件下发生反应: CO(g)+2H 2 (g) CH 3 OH(g). (1)图1是反应时CO和CH 3 OH(g)的浓度随时间变化情况.从反应开始到平衡,用CO浓度变化表示平均反应速率v(CO)=______; (2)图2表示该反应进行过程中能量的变化.曲线a表示不使用催化剂时反应的能量变化,曲线b表示使用催化剂后的能量变化.该反应是______(选填“吸热”或“放热”)反应,写出反应的热化学方程式______;选择适宜的催化剂,______(填“能”或“不能”)改变该反应的反应热; (3)该反应平衡常数K的表为______,温度升高,平衡常数K______(填“增大”、“不变”或“减小”); (4)恒容条件下,下列措施中能使 n(CH3OH) n(CO) 增大的有______. a.升高温度;    b.充入He气    c.再充入1molCO和2molH 2 d.使用催化剂.
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A.
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