So, the formula for enthalpy is usually written as change in enthalpy.

因此，焓的公式通常写成焓变。

And we measure enthalpy with a weird little science called calorimetry.

我们用一种叫做量热法的奇怪小科学来测量焓。

Why enthalpy change is different from heat, even though they turn out to be pretty much the same anyway.

为什么焓变与热不同， 尽管事实证明它们几乎是一样的。

Those bonds are nothing but energy, and using enthalpy, we can measure how much energy they have.

这些键只不过是能量， 使用焓，我们可以测量它们有多少能量。

Change in enthalpy is equal to the heat gained or lost by the system.

焓变等于系统获得或损失的热量。

The law itself says nothing about the standard enthalpy of formation.

该定律本身并未提及标准生成焓。

So I guess in the capital H for enthalpy does kinda make sense.

所以我想在大写的 H 中表示焓确实有点道理。

So, I wonder how that compares to the amount we would predict using Hess's Law and the standard enthalpy of formation?

所以，我想知道这与我们使用赫斯定律和标准生成焓预测的量相比如何？

Hess' Law is often stated in terms of standard enthalpies of formation.

赫斯定律通常用标准生成焓来表述。

As long as you start with the same reactants and end with the same products, the enthalpy change is the same.

只要您从相同的反应物开始并以相同的产物结束， 焓变就相同。