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在已达到平衡的反应体系中,加入一定量的“惰性气体”——与平衡体系中任一组分物质都不发生反应的气体,对平衡体系将会产生怎样的影响呢?本文假定所有气体都为理想气体的前提下,讨论在不同条件下,所产生的影响。一、气相反应中乎衡常数的各种表示方法设气体的化学反应是:aA+bB(?)=gG+hH在平衡时,K_p=p_G~g·p_H~h/p_A~a p_B~bp_G、p_H、p_A、p_B、为平衡体系中各种气体的分压,K_P为平衡常数。平衡常数K_P的特性:(K_P仅适于理想气体的化学反应,若为高压气体,要用逸度代替压力。)(1)与温度有关,在一定温度下,K_P为常数。
In a reaction system that has reached equilibrium, how does the addition of a certain amount of “inert gas”, a gas that does not react with any of the components in the equilibrium system, affect the equilibrium system? This article assumes that all gases Under the premise of ideal gas, discuss the influence under different conditions. First, various expressions of the constants in the gas phase reaction The chemical reaction of the gas is: aA+bB(?)=gG+hH In equilibrium, K_p=p_G~g~p_H~h/p_A~a p_B~bp_G , p_H, p_A, p_B, for the partial pressure of various gases in the equilibrium system, K_P is the equilibrium constant. The characteristics of the equilibrium constant K_P: (K_P is only suitable for the chemical reaction of the ideal gas. If it is a high-pressure gas, use the fugacity instead of the pressure.) (1) Depends on the temperature, at a certain temperature, K_P is a constant.