According to the similarity of physical behavior of foam separation process and chemical reaction process, the equivalent chemical reaction constant is introduced.

根据泡沫分离与化学反应过程在物理行为上的类似性，引入等效的化学反应常数，对实验方法进行了宏观动力学研究。

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We'll have a reaction vessel that's sealed, it's constant volume.

我们有一个密封的反应容器，它的体积是恒定的。

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To ask questions like how much heat is released in a chemical reaction that takes place at constant temperature.

当我们想要知道，当一个化学反应在恒定的温度下发生时，会放出多少热量时。

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To ask questions like how much heat is released in a chemical reaction that takes place at constant temperature.

当我们想要知道,当一个化学反应在恒定的温度下发生时,会放出多少热量时。

麻省理工公开课 - 热力学与动力学课程节选

OK, so this, what I've sketched here would be a constant pressure calorimeter. There's a reaction.

好，我画的就是一个恒压量热计,其中进行一个反应。

麻省理工公开课 - 热力学与动力学课程节选

And our heat of reaction or enthalpy of reaction is defined as the enthalpy at constant pressure.

我们的反应热，或反映,的焓被定义为恒压，等温。

麻省理工公开课 - 热力学与动力学课程节选

That way of doing business, however, cannot survive in the modern world, where decisions have to be taken in haste, in the glare of the media and with a constant eye to public reaction.

ECONOMIST: Struggling for the prince��s ear