2. Mr. Baldwin –AEC September 13th, 2010

3. Temperature Measure of heat or how fast molecules are moving Faster molecular motion = more heat Slower molecular motion = less heat No such thing as cold, just lack of molecular motion Therefore – NO HEAT!!!

4. Thermometers Fahrenheit Mainly used in the U.S. & Belize (Burma too!) Based on ice, water, and salt (a brine) = 0 degrees Freezing or melting of H2O = 32 degrees Under the armpit of his wife = 96 degrees 180 degrees from water freezing to water boiling (212 ) o

5. Thermometers Celsius Most widely used around the world Based on behaviors of water Water freezes at 0 Water boils at 100 Exactly 100 between 0 and 100 o o oo

6. Thermometers Kelvin Favorite of scientists Absolute Zero Such a lack of heat, that molecules actually STOP moving!!! This doesn’t actually exist Deep Space just above 0 K (Big Bang!!!) Exactly 273 added to the Celsius scale

7. Do the practice problems on the back of your note sheet!

8. Converting from Fahrenheit to Celsius [°F] = [°C] × 9 ⁄ 5 + 32 Remember 180 F between boiling and melting and 100 C between boiling and melting 180/100 = ??? ° °

9. Converting from Celsius to Kelvin [°C] + 273 = K Absolute Zero = -273 C °

10. Extra Credit Chance The Fahrenheit and Celsius scales have exactly one point where the numbers of the scale overlap (i.e. X degrees F = X degrees C) Either show me: The math to prove where these two scales overlap, or Find a reputable website (not Wikipedia) which tells you this data point. I will need a full citation for this Baldwin, P. 2010. APIRA-chem. Accessed 12 September, 2010 at http://aspira-chem.wikispaces.com/.

11. Conversion Graphs 10 20 30 4050 6070 Temperature ( o C) 0 20 40 60 80 100 120 160 180 Temperature ( o F) 8090100 140 200 220 Use the conversion graph to convert (a)76 o C to o F (b) 100 o F to o C Remember: 0 o C = 32 o F 100 o C = 212 o F oCoC060100 oFoF32140212 Use the conversion table to draw a conversion graph between o C and o F.

12. Conversion Graphs 10 20 30 4050 6070 Temperature ( o C) 0 20 40 60 80 100 120 160 180 Temperature ( o F) 8090100 140 200 220 Use the conversion graph to convert (a)76 o C to o F (b) 100 o F to o C Remember: 0 o C = 32 o F 100 o C = 212 o F 168 o F 38 o C oCoC060100 oFoF32140212 Use the conversion table to draw a conversion graph between o C and o F.

13. Rankine Scale Just like Kelvin scale Only based on Fahrenheit scale - 491.67 R = Freezing Point H2O - 671.41 R = Boiling Point H2O