lecture 11 the five senses of christmas chemistry
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Lecture 11 The Five Senses of Christmas Chemistry. Duncan Wardrop December 3, 2012. The Five Senses of Christmas. smell. touch. sight. taste. sound. Jackson, D. A.; Dicks, A. P. J. Chem. Educ. 2012 , 89 , 1267-1273. Smells Good - Looks Blue!. Blue Ridge Mountains ?. - PowerPoint PPT PresentationTRANSCRIPT
University of Illinois at Chicago
UICCHEM 494 Special Topics in Chemistry
Lecture 11The Five Sensesof Christmas Chemistry
Duncan Wardrop
December 3, 2012
UICUniversity of
Illinois at Chicago
2CHEM 494, Fall 2012 SlideLecture 11: December 3
The Five Senses of Christmas
sounsoundd
sounsoundd
sighsightt
sighsightt
touctouchh
touctouchh
smelsmelll
smelsmelll
tasttastee
tasttastee
Jackson, D. A.; Dicks, A. P. J. Chem. Educ. 2012, 89, 1267-1273
UICUniversity of
Illinois at Chicago
3CHEM 494, Fall 2012 SlideLecture 11: December 3
Smells Good - Looks Blue!
Turpentine collection in North Carolina
Blue Ridge
Mountains ?
monoterpene global emission rate 1014 g yr-1........
UICUniversity of
Illinois at Chicago
4CHEM 494, Fall 2012 SlideLecture 11: December 3
Musical Interlude
Blue Ridge
Mountains ?
QuickTime™ and a decompressor
are needed to see this picture.
UICUniversity of
Illinois at Chicago
5CHEM 494, Fall 2012 SlideLecture 11: December 3
Monoterpenes - A Cause of the Blue Haze
Blue Mountains, AustraliaHaze caused by eucalyptus
emissions
Virgin of the Rocksby Leonardo da Vinci
1483-1486
nano-particles
UICUniversity of
Illinois at Chicago
6CHEM 494, Fall 2012 SlideLecture 11: December 3
Sodium Acetate - Warm to the Touch
Crystallization of supersaturated sodium acetate in Christmas hand warmer: (a) t = 0 s; (b) t = 10 s; (c) t
= 90 s
QuickTime™ and aJVT/AVC Coding decompressorare needed to see this picture.
UICUniversity of
Illinois at Chicago
7CHEM 494, Fall 2012 SlideLecture 11: December 3
Thermodynamics & Supersaturation are Key
Crystallization of supersaturated sodium acetate in Christmas hand warmer: (a) t = 0 s; (b) t = 10 s; (c) t
= 90 s
Solubility of sodium acetate - 408 g/L
Melting point of sodium acetate - 58 °C (safety)
Crystallization results on a decrease in entropy (ΔS° negative)
Energy is released in the form of heat (ΔH° highly negative)
ΔG° = ΔH° - TΔS°
What about nucleation?
UICUniversity of
Illinois at Chicago
8CHEM 494, Fall 2012 SlideLecture 11: December 3
Silver Fulminate - Sounds Good
UICUniversity of
Illinois at Chicago
9CHEM 494, Fall 2012 SlideLecture 11: December 3
Fulminate vs. Cyanate - Isomerism of CNO-
UICUniversity of
Illinois at Chicago
10
CHEM 494, Fall 2012 SlideLecture 11: December 3
Ginger - Hot Stuff
UICUniversity of
Illinois at Chicago
11
CHEM 494, Fall 2012 SlideLecture 11: December 3
The Natural Products of Ginger
UICUniversity of
Illinois at Chicago
12
CHEM 494, Fall 2012 SlideLecture 11: December 3
The Chemistry of Raspberries
UICUniversity of
Illinois at Chicago
13
CHEM 494, Fall 2012 SlideLecture 11: December 3
Let’s Talk Turkey (& Misconceptions)