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影响化学反应速率和化学平衡的因素有内因(反应物和生成物的本性)和外因(外界条件,如浓度、压强、温度、催化剂等)。在影响化学反应速率和化学平衡的外界条件中,压强条件似乎很普通,实则很特别。一、教学中学生容易产生的疑问例如,N_2+3H_22NH_3△H<0。疑问1:恒温、恒容条件下,向平衡后的体系中再通入N_2,N_2的浓度增大,同时体系的压强也增大,为什么不用压强增大判断平衡移动呢?
Factors that affect chemical reaction rates and chemical balances are intrinsic (reactant and product nature) and external (external conditions such as concentration, pressure, temperature, catalyst, etc.). Among the external conditions that affect the rate of chemical reaction and the chemical equilibrium, the pressure conditions seem to be quite common but in fact very special. First, the teaching of students prone to doubt For example, N_2 + 3H_22NH_3 △ H <0. Question 1: Constant temperature and constant capacitance conditions, the system after the balance into N_2, N_2 concentration increases, while the system pressure also increases, why not increase the pressure to determine the balance of mobile it?