Next,add the wool and place the mixture over heat.

VOA: special.2010.08.02

And so as we add heat here, that was even quieter than last time.

因此我们在这里加热，怎么比刚才还安静啊？

麻省理工公开课 - 热力学与动力学课程节选

Heat capacity relates the amount of heat that you add to the system to the change in temperature, and this is the relationship.

热容联系起给系统提供的,热量和温度的变化，关系式是这样的：

麻省理工公开课 - 热力学与动力学课程节选

The native structure is this double stranded structure here and if I heat it up slightly and I add some base, so under slightly basic conditions, these molecules will fall apart because you've created conditions where the hydrogen bonding is no longer favorable so they peel apart.

原始结构,在这里就是指DNA双链,如果我稍微加热,并且加入一些碱,在弱碱性的条件下,这些配对碱基会分开,这是因为在一定条件下,碱基对之间的氢键,不再稳定并且会断裂分开

耶鲁公开课 - 生物医学工程探索课程节选

Here we have a fixed volume, and we have a little candle, and we're adding heat, and when we add heat, the pressure does what?

这里我们有一个容器，一个蜡烛，然后我们加热，这时压强会怎么变化？

麻省理工公开课 - 热力学与动力学课程节选

And the first law says, well heat and work are different forms of energy, and we can add them, and the path dependence of these two things is somehow cancelled in the fact that we have this internal energy.

热力学第一定律说，热和功是能量的不同表现形式，我们可以把它们加起来,它们与路径相关的部分相互抵消,我们就有了内能。

麻省理工公开课 - 热力学与动力学课程节选

We add heat to the system.

我们对系统加热。

麻省理工公开课 - 热力学与动力学课程节选