某温度下，体积一定的密闭容器中发生如下可逆反应：2X(g)+Y(s)3Z(g)

某温度下，体积一定的密闭容器中发生如下可逆反应：2X(g)+Y(s)3Z(g) △H=Q kJ/mol，下列说法正确的是

A．消耗2molX同时生成3molZ，说明达到了平衡状态

B．加入少量的Y正反应速率加快

C．气体的密度不变时，说明达到了平衡状态

D．加入少量的X，Q变大

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某温度下，体积一定的密闭容器中发生如下可逆反应：2X(g)+Y(s)3Z(g)

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