00:01
So we have a statement, the only perfectly ordered state of matter is a crystalline state.
00:06
So let's take a look at how valid this is.
00:09
So a state is considered crystalline if the atom, science, and molecules are distributed in the three independent directions of space, which we can consider be the y, x, and z axis.
00:23
So we have one going up and down, one going left to right, and one going into the page and out of the page.
00:30
So that's x, y, and c.
00:32
So x, y, z.
00:35
So if the atoms or molecules are distributed in a regular repetitive array in all three of these directions, we can say that this state is crystalline.
00:53
So if we look at this as an example of the crystalline state.
00:58
So you can see that there is just a regular repeating orderly array, and it extends it all three of these independent directions.
01:10
It was a very predictable pattern that it follows.
01:15
And this is an example of a solid that looks like this at the molecular level.
01:23
So specifically, this is quartz, and you can see that the orderliness of the molecules and make up the quartz are reflected in the properties of the quartz itself, because it's very orderly and very rigid...