Date post: | 10-Mar-2016 |
Category: |
Documents |
Upload: | chemistryadventure |
View: | 214 times |
Download: | 1 times |
D
D
D
D
D
D
D
D
D
Percent error = measured chip calories/actual chip calories x 100
Title
Name, Date
(For example:
Potato Chip Calorimetry
Or Energy Analysis of a common Snack Food)
Schematic drawing
With labels
Of your
calorimeter
caption
Conclusions
Include the Nutritional
Calories calculated for
your chip, the estimated
real nutritional calories for
your chip, and an
explanation for the
difference.
Data
Q = mcDT
Q=
M=
C=
DT =
= ( ) ( ) ( )
= ___ J
= ___Nutritional
Calories
Pick a topic:
1. What is calorimetry?
2. Sources of Error
in our calorimeter design
3. A better design for
the next experiment
10 points:
1. Effort: 5 points
-does this represent
45 minutes of effort?
2. Calculations: 3 Points
-are they accurate?
3. Analysis: 2 points:
Why are the results so
bad (or so good).
D
D
D
8
D D
D
D
D D
D
D
D
D
D
D
D
10
D
D
D
D
•
•
•
D
D
D D D
D D D
DD
Selected Bond Energies (KJ/mol)
Bond Energy Bond Energy
D
D
D
° °
° °
°
° °
D
° ° °
° °
° °
D
D
D
D
D
D
D
D
° ° ° °
°
D
DG = DH –TDS
Where
DG = Gibbs Free Energy
DH = Enthalpy in Joules
T = Temperature (K)
And DS = Entropy in Joules/K
D D D
D D D
D
D
D D
D
D . D
D
D D
D D
D D D
D
D
D
D
D D D
D D D
D
D
D
D
D
D