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高中化学课本在讲到压强对化学平衡的影响时,谈到给装有NO_2和N_2O_4混和气体的密闭容器加压,容器的体积缩小,NO_2和N_2O_4的浓度增大,混和气体的颜色先变深又逐渐变浅。说明加压时,反应2NO_2(气)(?)N_2O_4(气)向正反应方向移动。课文中没有进一步说明新平衡时的颜色比原平衡时的颜色
When high school chemistry textbooks talk about the effect of pressure on chemical balance, they talk about pressurizing a closed vessel containing a mixture of NO 2 and N 2 O 4 . The volume of the container is reduced, the concentration of NO 2 and N 2 O 4 increases, and the color of the mixed gas first darkens. It gradually becomes lighter. When the pressure is applied, the reaction 2NO_2(gas)(?)N_2O_4(gas) moves in the positive reaction direction. There is no further explanation in the text of the color of the new balance compared to the original balance.