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对于任一气态体系的可逆反应 aA+bBcC+dD(式中 A、B、C、D 代表化学物质,a,b、c、d 则代表它们在配平方程式中的系数)同其它一切可逆反应一样,当处于化学平衡状态时:([C]~c·[D]~d)/([A]~a·[B]~b)=Kc(Kc 为反应的平衡常数,方括号代表以摩尔/升为单位的平衡浓度)平衡常数 Kc 常具有上述浓度商的形式。在任一指定温度下,比值([C]~c·[D]~d)/([A]~a·[B]~b)是一个常数,它与起始时 A、B 和 C、D 的量、容器体积或总压力无关。而我们在实
For any gaseous system, the reversible reaction is aA+bBcC+dD (where A, B, C, and D represent chemical species, a, b, c, and d represent their coefficients in the squared scheme) and everything else. Like the reversible reaction, when in chemical equilibrium: ([C]~c[D]~d)/([A]~a•[B]~b)=Kc (Kc is the equilibrium constant of the reaction, square brackets Representative equilibrium concentrations in moles per liter) The equilibrium constant Kc often has the above form of concentration quotient. At any given temperature, the ratio ([C]~c[[D]~d)/([A]~a[B]~b) is a constant, and it starts with A, B, and C, D The volume, container volume, or total pressure is irrelevant. And we are