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化学反应与能量是高考必考的知识点,在新教材中已将化学反应与能量变化作为一条主线贯穿始终,几乎可与任何章节相联系、相综合,运用化学反应与能量变化的知识与观察生活、生产和社会中的各类有关化学能源问题。从近几年的全国卷和各省的地方卷分析来看,几乎每一份试卷中都涉及本部分的试题,主要题型有焓变的简单计算、反应热的大小比较、热化学方程式的正误判断、热化学方程式的书写。近年又出现反应热与能源结合起来进行考查的试题。能源危机已迫在眉睫,因此可以预见,有关能源的试题将成为今后考查的一个重要方向,有关反应热的内容的深度、广度和难度将有所提高,题型也可能出现一些变化。
Chemical reaction and energy is the knowledge of the college entrance examination will be the point, in the new textbooks have chemical reactions and energy changes as a main line throughout, almost any chapters can be linked to the synthesis, the use of chemical reactions and changes in energy knowledge and observation Life, production and society in the various types of chemical energy issues. In recent years, the volume of the country and the provincial volume analysis from the point of view, almost every paper are involved in this part of the test questions are the main types of simple enthalpy calculation, the size of the reaction heat, the correctness of the thermochemical equation Judgment, writing of thermochemical equations. In recent years there has been a combination of reaction heat and energy test questions. The energy crisis is imminent. Therefore, it is foreseeable that the examination questions on energy will become an important direction for future examinations. The depth, breadth and difficulty of the response heat will be raised, and the types of questions may also change.