reaction powered car!

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Reaction Powered Car! By Mitchell Truong Nicholas Kusanto Seth Burts

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Reaction Powered Car!. By Mitchell Truong Nicholas Kusanto Seth Burts. Group picture with car. The Design Team. Hydrochloric acid reacts with sodium bicarbonate to form sodium chloride, carbon dioxide and water Sample Calculation. Reaction Chemistry. Three wheels - PowerPoint PPT Presentation

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Page 1: Reaction Powered Car!

Reaction Powered Car!By

Mitchell TruongNicholas Kusanto

Seth Burts

Page 2: Reaction Powered Car!

The Design Team

Group picture with car

Page 3: Reaction Powered Car!

Reaction Chemistry

Hydrochloric acid reacts with sodium bicarbonate to form sodium chloride, carbon dioxide and water

Sample Calculation

Page 4: Reaction Powered Car!

Car Design: “The Wheelbarrow”

Three wheelsLightweight, constructed with K’nexInclined BottleAcid-base reaction with hydrochloric acid

(limiting reagent) and sodium bicarbonate (in excess)

Page 5: Reaction Powered Car!

Results

Day Trial Baking Soda (NaCO3) 12 M Hydrochloric Acid (HCl)

CO2 Atmospheres(atm)

DistanceTraveled

# # Mass (g) Mol mL Mol Mol (atm) Ft.1 1 11g 0.131 12 0.144 0.144 4.49 211 2 13.44 0.136 13.33 0.16 0.16 5.50 291 3 11.088 0.132 11 0.132 0.132 4.53 211 4 11.599 0.138 11.5 0.138 0.138 4.74 301 5 11.739 0.140 11.25 0.135 0.135 4.33 171 6 11.93 0.142 12 0.144 0.142 4.7 302 7 11.6 0.138 12 0.144 0.138 4.55 292 8 11.2 0.133 11.5 0.138 0.133 4.4 322 9 10.2 0.121 10.5 0.126 0.121 4.0 23.52 10 10.3 0.1226 10.5 0.126 0.1226 4.05 23.52 11 10.42 0.124 10.5 0.126 0.124 4.1 233 12 10.593 0.126 11 0.132 0.126 4.1 25.4

Car Testing Trials

Note: Variation in moles of CO2 needed and atmospheric pressure is due to the change in temperature over the course of three days.

Page 6: Reaction Powered Car!

Conclusion

Our car reached 2nd place in the annual CBEE reaction car competition with a distance of 25’5”. “The Wheelbarrow” emitted no spew when it was propelled by CO2 gas. Our distances varied across the board due to many inconsistencies which include: releasing the bottle too late, not opening the lid all the way, relying on “weather.com” to approximate the temperature rather than directly taking a thermometer outside on the course, and because our pieces were swiped off our car between day 1 and 2. We have included evidence on the following slide.

To improve consistency, if this project was done again, it would be nice to have a method to twist the cap to release the gas in the same manner every time (to prevent holding too long). For example, opening the cap, counting “one-one-thousand,” and then releasing the car. The design of the car itself in the trials seemed extremely stable (always launched straight), never spewed, and was generally consistent in distance travelled (apart from the holding issue). Other than improving wheel alignment consistency by reinforcing the front wheel, we would not make any major changes to our design. We tried to keep our car as light as possible so that we could use the least amount of “fuel” for the “trip.”

Page 7: Reaction Powered Car!

Evidence

Day 1 Before Thanksgiving:Tan Pieces

Day 2After Thanksgiving:Grey Pieces

Page 8: Reaction Powered Car!

Thanks!

Special Thanks to Dr. Skip and Jack!