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Lecture 11 The Five Senses of Christmas Chemistry PowerPoint PPT Presentation


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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 ?.

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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 ?

Turpentine collection in North Carolina

monoterpene global emission rate 1014 g yr-1........


Musical Interlude

Blue Ridge Mountains ?


Monoterpenes - A Cause of the Blue Haze

Virgin of the Rocks

by Leonardo da Vinci

1483-1486

nano-

particles

Blue Mountains, Australia

Haze caused by eucalyptus emissions


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


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?


Silver Fulminate - Sounds Good


Fulminate vs. Cyanate - Isomerism of CNO-


Ginger - Hot Stuff


The Natural Products of Ginger


The Chemistry of Raspberries


Let’s Talk Turkey (& Misconceptions)


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