这热化学方程与化学方程之间的关键区别is that a thermochemical equation shows the焓反应的变化,而化学方程通常不会显示焓变。
热化学方程是一种平衡的化学计量化学反应,包括焓变,而化学方程是一个方程式,显示起始化合物,反应物, and final products separated by an arrow.
内容
1。概述和关键差异
2。What is a Thermochemical Equation
3。什么是化学方程式
4。这rmochemical Equation vs Chemical Equation in Tabular Form
5。摘要 - 热化学方程与化学方程式
什么是热化学方程?
热化学方程可以描述为表明焓变的平衡化学计量化学反应。焓变为ΔH。在其可变形式中,这种类型的反应显示为A + B→C;ΔH=(±)#其中a和b是反应物,c是最终产物,(±)#是焓变的正值或负数值。
系统的焓是与系统的总热含量相等的热力学量。它等于内能系统的压力和体积乘积。因此,它是系统的热力学特性。
我们可以通过将其乘以任何数值系数来更改热化学方程。在这种方法中,我们需要乘以所有代理,包括焓变。例如,上述示例可以乘以“ 2”,并且给出2a + 2b→2c,2ΔH= 2 [(±)#]。
什么是化学方程式?
化学方程式是一个显示sta方程rting compound, reactants, and final products separated by an arrow. In other words, a chemical equation is a representation of a chemical reaction. This means the chemical equation gives the reactants of the reaction, the end product, and the direction of the reaction as well. There are two types of equations: balanced equations and skeleton equations.
A balanced chemical equation gives the actual number of reactants that react with each other and the number of product molecules formed. It is a fully detailed equation that indicates the ratios between reactants and products. When calculating a parameter such as the amount of product we obtain from the reaction, we have to use the balanced chemical equation; otherwise, we won’t know how much reactants reacted to give how much of products.
A skeleton equation indicates the types of reactants involved in the chemical reaction and the end products. However, this does not give the exact ratio between the reactants and products. Therefore, the important details we can get from a skeleton equation are the reactants of the reaction, the products of the reaction, and the direction of the reaction.
热化学方程和化学方程之间有什么区别?
在化学中,方程式显示了与特定化学反应的分子和反应进展的方向。热化学方程和化学方程之间的关键区别在于,热化学方程始终显示反应的焓变,而化学方程通常不会显示焓变。
以下信息图列出了热化学方程和化学方程之间的差异。在表格形式中进行并排比较
摘要 - 热化学方程与化学方程式
热化学方程是一种平衡的化学计量化学反应,其中包括焓变,而化学方程是一个方程式,显示了启动化合物,反应物和最终产物,并由箭头分离。热化学方程和化学方程之间的关键差异是反应的焓变。热化学方程始终表示反应的焓变,但是化学方程通常不会显示焓变。
参考:
1.“”3。1: Chemical Equations。”化学库, Libretexts, 8 Nov. 2021.
图片提供:
1.“”TCHDC” 467 Divya.N - 自己的工作(CC BY-SA 4.0)通过Commons Wikimedia
2.“”平衡化学方程” Zappys技术解决方案(CC BY 2.0)通过Flickr
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