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在中学的化学教学中,化学位的概念,虽然不会直接用上,但是在一些公式的推导与定律的论证上,能应用化学位的概念,则较为严密,又能定量地说明问题。例如化学平衡常数的推导、稀溶液的分配定律、单组分体系相变过程温度与压力的关系和凝固点降低常数、沸点升高常数等等。这些公式、定律是中学化学教学、备课、深入钻研教材时要考虑的问题。本文拟就化学位的意义及化学位公式的来源与应用,作较浅显的论述。
In the chemistry teaching of middle school, although the concept of chemical position can not be used directly, the concept of chemical position can be applied in the formulation of some formulas and the law of law, which is more rigorous and can quantitatively explain the problem. For example, the derivation of chemical equilibrium constants, the distribution law of dilute solution, the relationship between the temperature and pressure in the process of one-component system transformation, and the reduction constant of the freezing point, the constant of the boiling point and so on. These formulas and laws are the questions that should be considered in the teaching of chemistry in secondary schools, preparation of classes and in-depth study of teaching materials. In this paper, we will discuss the significance of chemistry and the origin and application of chemical formula.