we're going to look at the effect of 我们要看一下效果
pressure on the vapor pressure due to 上的蒸气压的压力由于
water remember a vacuum pump is a 水记得真空泵是一个
instrument that will remove gasses here 这里将去除气体的仪器
you have the o-ring that's going to make 你有将要制作的O形圈
a seal we have water with a thermometer 我们用温度计给水密封
we're going to make a closed system and 我们要做出一个封闭的系统和
when we turn the vacuum pump on what's 当我们打开什么真空泵
going to happen it's going to take gas 将要发生它将采取天然气
molecules out of the container through 分子从容器中通过
this tube right here 这管在这里
I'd like you to observe what happens to 我希望你能观察到会发生什么
the liquid and also what happens to the 液体以及发生的事情
temperature when we change the pressure 我们改变压力时的温度
in the container 在容器中
so you should see that water boils and 所以你应该看到水沸腾和
it's still only about 70 degrees 它仍然只有70度左右
Fahrenheit 飞轮海