And, this involves the reaction of titanium tetrachloride with magnesium to form magnesium chloride plus titanium And, this was invented in 1937 by W. J. Kroll.

四氯化钛和镁，反应生成氯化镁和钛，1937年W。J。克劳尔发明了这个方法。

youdao

So it's the same as q reversible plus w reversible.

它们是相等的，因此这也等于q可逆加w可逆。

youdao

w And that has to equal q plus w, summed up for all the steps.

等于q加，对所有过程相加。

youdao

q Work is zero. Delta u is w plus q, work plus heat. This is zero, this isn't.

功是零，△U是w加，功加上热量，这个是零。

麻省理工公开课 - 热力学与动力学课程节选

U OK, so let's look at delta u. Delta u is q plus w.

好的，让我们看看Δ

麻省理工公开课 - 热力学与动力学课程节选

w And that has to equal q plus w, summed up for all the steps.

等于q加，对所有过程相加。

麻省理工公开课 - 热力学与动力学课程节选

Rather, it's a 4.0-liter that's essentially like two tight V-4 engines joined at the hip (V plus V equals a W).

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