备战高考化学的重要知识点总结
下面是小编收集整理的备战高考化学的重要知识点总结,本文共17篇,仅供参考,希望能够帮助到大家。 (1)反应热:化学反应在一定条件下反应时所释放或吸收的热量。 (2)焓变:在恒压条件下进行的化学反应的热效应即为焓变。 (3)符号:ΔH,单位:kJ/mol或kJ·molˉ1。 (4)ΔH=生成物总能量-反应物总能量=反应物键能总和-生成物键能总和 (5)当ΔH为“-”或ΔH 当ΔH为“+”或ΔH>
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