热化学反应方程式是高中化学学习中的一个重要知识点,在高考考试中,不仅仅是考查热化学反应方程式的书写,还会以热化学反应方程式为载体,从以下几个方面考查。1.热化学反应方程式的物理意义例1已知热化学方程式2H2(g)+O2(g)=2H2O(1);△H=-571.6 kJ·mol-1。下列有关叙述错误的是()。A.2molH2完全燃烧生成液态水时放出571.6 kJ的热量B.1molH2完全燃烧生成液态水时放出285.8 kJ的热量 The thermochemical reaction equation is an important point in high school chemistry learning. In the college entrance examination, it not only examines the writing of the thermochemical reaction equation, but also takes the thermochemical reaction equation as the carrier and examines the following aspects. 1. Physical meaning of the thermochemical reaction equation Example 1 The known thermochemical equation 2H2 (g) + O2 (g) = 2H2O (1); ΔH = -571.6 kJ · mol-1. The following statement about the error is (). A.2molH2 Complete combustion generates liquid water release 571.6 kJ of heat B.1molH2 Complete combustion generates liquid water release 285.8 kJ of heat