Thermodynamics: residual entropy S of water ice calculation

00:18 Literature references
00:47 Formula for entropy S
01:19 Tetrahedral arrangement of oxygen atoms (red)
01:47 Grey lines showing connectivity of oxygen atoms
02:33 Pauling's First Method, structure 1
03:17 Structure 2
03:33 Structure 3
03:43 Structure 4
03:53 Structure 5
04:03 Structure 6
04:16 Grid of 6 orientations of central water molecule
04:42 Repeat of grey lines showing connectivity of oxygen atoms
06:05 Number of conformations W by Pauling's First Method
06:22 Pauling's Second Method, structure 1
07:04 Structure 2
07:32 Grid of all 16 structures of central oxygen with explicit hydrogens shown
08:03 Structure invalid, too many connected hydrogen atoms (4)
08:22 Structures invalid, too many hydrogen atoms (3)
08:42 Structures invalid, too few hydrogen atoms (1)
09:03 Structure invalid, too few hydrogen atoms (0)
09:23 Grid of all 16 structures of central oxygen with explicit hydrogens shown, with invalid structures crossed out
09:53 Calculation of W by Pauling's Second Method
10:55 Residual entropy for both methods

The residual entropy of ice water is calculated using both methods employed by Linus Pauling in his 1935 paper.

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Видео Thermodynamics: residual entropy S of water ice calculation канала lseinjr1