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X.>Y.>Z Y.>Z.>X Y.>X.>Z X.>Z.>Y.
3,2,0 3,2,-1 4,3,-1 5,-2,-5
(x+2y-3z)(x-2y-3z). (x-2y-3z)(x-2y+3z) (x+2y+3z)(x+2y-3z). (x+2y+3z)(x-2y-3z)
(2y - 2z - x)/(3y + z + x) (2y + 2z - x)/(3y – z - x) (2y + z - 2x)/(3y + 2z - x) (2y + 2z - x)/(3y + z - x)
x-z-2=0 x+z=0 x-2y+z=0 x+y+z=1
X>Y>Z>W Y>X>W>Z Z>X>Y>W Z>Y>X>W
3X+Y===Z 2X+Y===Z X+3Y===Z 3X+Y ===2Z
参加反应的Na2O2为(x+y)mol
反应后容器中有O2 (x+y)/2 mol
反应前后容器中压强之比(温度未变)为(x+2y)/z
反应后生成了x molNa2CO3和2ymol NaOH
x+3y-2z-6=O x+3y-2z=0 x-3y-2z-6=0 x-3y-2z=0