00:01
One has the greatest molar entropy.
00:09
So there are a different way to evaluate the entropy.
00:14
First of all, the physical state.
00:16
So usually we know that gas has a greater entropy than liquid than solid.
00:24
So from there, you can already eliminate the solid sodium chloride and is a solid.
00:32
Water is a liquid.
00:34
So these will have lower entropy than the gas.
00:37
Now, the second criteria is going to be complexity and molecular size.
00:42
And larger, if they're both gas, larger and more complex molecule usually have greater entropy because they have greater number of weight of atom can arrange.
01:09
So if we look at the three gas options, methane, ch4, has five atom, one c, and or h.
01:21
And then you have the dinitrogen tetraetroxide.
01:25
And then it has bigger molecule because you have oxygen, they are bigger, and you have six molecule or six atom in total...