單項(xiàng)選擇題若反應(yīng)氣體都是理想氣體,反應(yīng)平衡常數(shù)之間有Ka=Kp=Kx的反應(yīng)是()①2HI(g)=H2(g)+I2(g)②N2O4(g)=2NO2(g)③CO(g)+H2O(g)=CO2(g)+H2(g)④C(s)+CO2(g)=2CO(g)

A.(1)(2)
B.(1)(3)
C.(3)(4)
D.(2)(4)


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