評論
打印
Now, there are other ways we can describe mixtures, and one of these is by properties, uh, variable properties.
我們還有其他方式描述這些混合物，其中之一就是通過性能，變性質。
A real simple example of this is the taste and color of a cup of coffee.
一個很簡單的例子就是一杯咖啡的味道和顏色。
The more coffee that’s dissolved in the water, the stronger the taste of the coffee, and the darker the color, the darker the solution.
溶解在水中的咖啡越多，咖啡的味道就越強烈，顏色也就越深，
So, color and taste, these are two variable properties.
所以，顏色和味道，這是兩種變性。
And these variable properties, they vary of course, because of the relative amounts of the components, and the melting or freezing points of liquids too.
而這些變性質，它們當然是不同的，因為這些成分的相關數量不同，還有液體的融點和凍點也不一樣。
A solution of salt water, for example, will have a different freezing point depending on how much salt is dissolved in the water.
比如一個鹽水的溶解物會有不同的凍點，這取決于水中溶解了多少鹽。
