OK, so now we're going to do the same kind of experiment, but irreversibly. An irreversible adiabatic.

现在来在,不可逆的条件下，完成相同的实验。

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We can do it reversibly, or we can do it irreversibly.

它可以是可逆的，也可以是不可逆的。

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You've irreversibly changed that substance because you've changed the structure of all the proteins inside.

蛋白质的结构发生不可逆的变化,因为蛋白质内部的全部结构都改变了

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So suppose we do it irreversibly.

假设它是不可逆的。

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And for the spontaneous change which happens irreversibly That means that'll be dq irreversible.

对于不可逆的自发过程,这说明dq是不可逆的,当过程是可逆时。

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