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在化学平衡中有这样一道题:在一定条件下,可逆反应2NO_2(g)(?)N_2O_4(g)△H<0达到平衡,保持容器容积不变,通入一定量NO_2平衡向移动(填“左”或“右”),达到新平衡时,NO_2的百分含量(填“增大”、“减小”或“不变”)。保持容器容积不变,通入一定量N_2O_4,平衡向__移动(填“左”或“右”),达到新平衡时,NO_2的百分含量__(填“增大”“减小”或“不变”)。在这道题中,通入一定量NO_2平衡向右移动,达到新平
In the chemical equilibrium, there is such a problem: Under certain conditions, reversible reaction 2NO_2 (g) () N_2O_4 (g) △ H <0 to achieve equilibrium, maintaining the container volume unchanged, through a certain amount of NO_2 balance to move (Left, right, left, or right), the percentage of NO 2 is reached when new equilibrium is reached (fill “Increase ”, “Decrease”, or “Unchanged ”). Keep the volume of the container constant, pass a certain amount of N 2 O 4, balance move to __ (fill “left ” or “right ”), reach the new equilibrium, the percentage of NO 2 _ “” Decrease “or ” unchanged "). In this problem, access to a certain amount of NO_2 balance shift to the right, reaching a new level