This quantity is exactly zero for an ideal gas and we'll discover why eventually it has to do with what we mean by an ideal gas it turns out.
对理想气体它是零,这点我们接下来会知道是,为什么,这与为什么我们叫它理想气体有关。
They have a very big, lots of races and it's called Royal Ascot because the Queen attends.
他们有许多比赛,然而,它之所以叫皇家赛马会,是因为女王会观场。
/2 You can have it equal to plus 1/2, and that's what we call spin up, 1/2 or you can have it equal to minus 1/2, which is what we call spin down.
它可能会等于,我们叫它自选朝上,或者它等于负,我们叫它自旋朝下。
We would give you the energy levels and ask you to rationalize something that we are going to tell you is true.
我们会告诉你能级,然后叫你解释一些东西,一些待会我会告诉你它是正确的东西。
Unfortunately, this is also call the Rydberg constant, so it's a little bit confusing. But really it means h the Rydberg constant divided by h, and that's equal to 3 .
不幸的是,它也叫Rydberg常数,所以这可能会有点混淆,但它表示Rydberg常数除以。
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