1. Group Ant Bill Josephson Bubba Klinger Suzie Smith
Experiment 1 - PreLab Explosive Decompression (aka Mentos© and Diet Coke©)
Group Ant
Bill Josephson
Bubba Klinger
Suzie Smith
CHEN 3820
Lab Date – 9/1/2009
Pre-Lab Date – 8/25/2009

2. Background Mentos + Diet Coke = Whoosh!! popularized by internet
commonly done in secondary schools
Mentos provide nucleation sites for the CO2 present in the Coke, accelerates the release of CO2 from solution
parameters: solid material, soda type, T

3. Objectives Become acquainted w/ 3820 procedures
Become acquainted w/ basic graphing policies, some error analysis

4. Equipment The fresh maker Mentos 2 L bottles Diet Coke
standard mint Mentos
nozzle/valve assembly

5. Experimental Procedures
Group Ant will be assigned operating levels (i.e., # of Mentos)
Open bottle, screw on valve/nozzle (closed valve), insert Mentos, open valve, estimate fountain height
Pool data w/ rest of class
Plot as Fountain Height vs. # of Mentos F E N C
& G A T
Mentos
The fresh maker

6. Expectations