摘要
图解法计算标准反应热不仅直观地反映了赫斯定律的应用且克服了代数法不易掌握运算规律、公式法因记错相减顺序而发生错误的缺点,为温度对反应热的影响———基尔霍夫定律的理解以及在温度变化范围内参加反应的物质有相变化的反应热的计算打下基础.
To calculate the standard reaction heat with the graphic method not only directly reflects the application of the hesss law but can easily overcome the drawbacks caused by the algebraical method and the formula method.The graphic method helps to understand the Kirchoffs Law and to calculate the reaction heat when the phase change of the substances involved in the reaction occurs within the range of the temperature change.
出处
《四川师范学院学报(自然科学版)》
1997年第1期52-55,共4页
Journal of Sichuan Teachers College(Natural Science)
关键词
图解法
标准反应热
热化学
graphic method,standard reaction heat,thermochemistry.