热化学

Thermochemistry is the study of the energy and heat changes accompanying chemical reactions or physical transformations.
热化学是研究化学反应或物理变化伴随的能量和热量变化的学科。
The enthalpy change in a reaction, ΔH, is a fundamental concept in thermochemistry.
反应中的焓变，ΔH，是热化学中的一个基本概念。
Calorimetry experiments are commonly used in thermochemistry to determine the heat of reaction or formation.
热量计实验常用于热化学中以确定反应热或生成热。
Hess's Law, stating that the total heat of reaction is independent of the reaction path, is a cornerstone of thermochemical calculations.
赫斯定律指出，总反应热与反应路径无关，是热化学计算的基石。
The first law of thermodynamics, which states that energy cannot be created or destroyed, underpins all thermochemical processes.
热力学第一定律表明能量不能被创造或销毁，这是所有热化学过程的基础。
Enthalpies of fusion and vaporization are important thermochemical properties used to understand phase transitions.
融化焓和汽化焓是理解相变的重要热化学性质。
In thermochemistry, bond dissociation energies help predict whether a reaction will proceed spontaneously.
在热化学中，键解离能有助于预测反应是否会自发进行。
Standard enthalpy of combustion is the enthalpy change when one mole of a substance burns completely in oxygen under standard conditions.
标准燃烧焓是在标准条件下一摩尔物质完全在氧气中燃烧时的焓变。
Thermochemical equations provide a quantitative way to express the heat absorbed or released during a chemical process.
热化学方程式提供了一种定量表达化学过程中吸收或释放的热量的方法。
The heat capacity of a substance is a crucial parameter in thermochemistry, determining how much heat is required to change its temperature.
一种物质的热容量是热化学中的一个关键参数，它决定了改变其温度所需的热量多少。